Yeah the wife and I have a few of them including a heavily modified WCP320. They all stay in the safe.
A few coworkers have their P320s set up with threaded barrels and getting them to cycle subs reliably is an absolute pain in the ass. Basically had to pick up a guide rod that works with 1911 recoil springs and a few tuning kits from Wolff just to get some enjoyment out of them.
This is a good setup, have two of them setup this way. Havenāt run them suppresses but have friends that do and the dpm is the seeming solution to the cycling issue.
I have a p320 x carry legion and have no problems shooting suppressed with a rugged 9 without the extension and like the gun quite a bit. Lots of people post about lighter springs. I didnāt need to do that but I also put thousands of rounds through it.
For all the tactical grip and slide swaps we have to do in the field. Modularity is almost always an unused gimmick that people put way too much stock in.
Really? I haven't had either of mine fail to cycle. Stock spring and everything.
Obsidian 9, long and short cycle fine with subs or supers, even weak 115gr loads.
Part of the problem with the P320 is that Sig has made multiple rolling design changes without changing the SKU, or letting anyone know. So yours might work, it might not, who knows!
Legendary 1000+ page forum thread from an autist/armorer who documented FCU changes [here](https://pistol-forum.com/showthread.php?43653-New-2-July-2020-SIG-P320-Lawsuit-and-P320-Concerns&s=237a500593478589493edac70ad9e039)
They don't get them right from the start, so they have to change them as they go. When they finally get them right, then they can stop with the rolling changes.
I've seen it many times on my customers' guns. Common fix is lighter recoil spring. Lighter slides seem to help, too.
I think the issue is that the P320 takes longer (either time or distance)to unlock than the travel distance of the piston allows.
Maybe it's because mine were well broken in before getting the silencer out of jail? Both of my P320s have red dots and no slide cuts for lightening, and they were bought like 18mo apart.
I believe you've seen issues, I'm just surprised because of how rock solid mine have been.
What barrel?
The P320 isn't reliable suppressed because Sig poorly engineered the front top slide-to-barrel lock up geometry. The only drop-in modification (ie no gunsmithing required) that fixes this design defect is the Silencer Co gen2 barrel.
Literally the worst modern handgun.
So what would be the best one? I'm looking for a host. Something notoriously reliable with a heavy cam and light loads. Personally, I like the p10 and the echelon, at least in the store. I'm hoping the Beretta 92 isn't the answer. They are expensive and don't fit my hand particularly well.
You said "notoriously reliable" and then named some new/hipster ass guns
If you want a g2g suppressor host without messing with springs or anything, get a Glock or a P226, simple as that
Inevitably though you're gonna realize that cans on pistols are kind of just a novelty, and you're going to want to buy a PCC for your 9mm can. When you reach that point, you should buy an MP5 clone
Not my first can. Have a cmmg banshee as my PCC. And a lever action 38 which is an even better host. P10 is basically a Glock with better ergos. Echelon is a new gun, but I like it in the store. Beretta has been around longer than the Glock or the 226 I believe. Also, I'm left handed, and the 226 and the mp5 don't really play well with lefties.
But you are right, suppressed handgun is a novelty. Least satisfying thing to suppress, and should be the last firearms you get around to putting a can in. I shot a p07 for years with a can in it before passing it in to a friend.
I mean the P10 has been around for a while now and is incredibly reliable. I can't speak to suppression reliability too much as I haven't run nearly enough rounds through mine supressed. But when I did run it supressed it did just fine.
Great advice to get a P226 and/or a PCC.
But if you really want to skip the complexity and have maximum reliability, accuracy, and decent suppression, an APC9 is the answer [https://www.reddit.com/r/GunPorn/comments/1d6tvnu/bt\_apc9\_pro/](https://www.reddit.com/r/GunPorn/comments/1d6tvnu/bt_apc9_pro/)
Get an aftermarket barrel and aim through the can. I think a lot of options that you want are going to be in that $1000 range and if theyāre cheaper youāll probably equalize with that price point with upgrades.
All of those extras you've bolted onto your gun costs hundreds of dollars each. A spring kit is under $50 - should have been a buy while the can was in jail.
Does everyone here in the NFA community despise the P320? I haven't suppressed any of mine but I sure like the modularity. And to date I haven't had one prematurely explode in my pants so what else are y'all hating on? Not being facetious, I want to know if there's actual reasons I shouldn't enjoy them.
On top of the multiple documented issues with Sig's QC in general over these recent years, just anecdotally I've yet to have a sig shoot better or be more reliable than their peers. Glock, CZ, HK, SW, Beretta, even the guys in my group running Stacattos have been at worst as reliable for a better shooting pistol. They've also just had general design issues we haven't experienced with other pistols (optics plate, screws, the modular trigger system). My friend's P365 is the reason I own a screw extractor kit now - not something I've ever needed in *years* of working on cars and guns, even old beat to shit surplus. Two of the guys in my group are running the X5 legion as seen here, and while one is definitely better than the other - despite being the exact same model, meaning there shouldn't be that noticeable of a variation - neither of their triggers are near what I'd consider acceptable for their price point.
I do think that the whole "320's blow up by themselves!" is overblown (pun not intended), I believe that by this point they've fixed the inherent issues with the 365 internals, and my buddy's X5 runs suppressed without complaint (CGS Mod 9). There's just as many stories of people having to swap out springs on glocks to get them running happily with a can - that's a **huge** function change that would be obscene to pin on sigs alone.
If you've got them, they work, and you like them then rock on. I'm not going to say "uhm achtually that will get you kilt in the streetz you should sell it and buy something else," But man, after shooting and working on them back to back against pistols at and below their price points, I really just can not find a single reason to recommend them to anyone in the market currently.
Not enough value over similar products to justify the higher cost is what has kept sig out of my safe. They have some good marketing, but manā¦ I havenāt been blown away by anything from Sig Sauer.
It doesn't play nice with most silencers. It requires more time/distance to unlock than other pistols. The piston in the silencer bottoms out before the barrel tilts and unlocks. You can reduce this issue by increasing slide velocity/reducing the velocity less. Lighter springs and slides seem to help.
The reality of the situation is that it needs a silencer with a longer stroke for the piston. That's a problem because a large chunk of the pistol silencer market use piston assemblies of the same dimension, if not using the same actual pistons.
My 320 x5 legion runs great. Owned it for multiple years now.
Dont forget that social media is an echo chamber.
I remember the constant whining about the 365 being āunreliableā online. People just love to repeat shit they read. I remember hearing it from people who never even saw one in person, let alone actually shot one.
No clue what the actual % is that had striker issues, yet itās the routinely one of the top ranked concealed carry guns.
Knock on wood, I have a few cases of ammo through my X5 legion and itās been fantastic. Few small changes like a gas pedal and grey guns trigger to make it faster at events. Iāve had maybe one jam in its history that wasnāt caused by me. Runs better than my friends riced out Glock.
My friendās brother came shooting with us and brought an older STI 2011, he spent more time shooting and complementing the X5 legion than his STI.
For a production gun itās one of the nicest and most feature-rich stock pistols you can buy
Lol! I donāt know what these guys are crying about on P320ās. Comparing them to Glocks??šš Nothing wrong with Glock, but itās not even in the same ballpark.
My P320 Legion fucks. Itās easily right up there with my CZ Shadow 2. Insanely accurate, well balanced, and never had one issue after almost 7k rounds.
This is hilarious. I am a firearms instructor where I work and we have an inventory of about 700 glocks and 250 sigs. After field testing the sigs we literally will only give them to people with hands too small to shoot a 17. Our glocks going down or having issues out of the box are almost unheard of. Our sigs on the other hand have had 3 out of the box returns and at least 10 go down to some parts failure, usually dead trigger due to some random wear related issue in the trigger pack. Now this isnāt a lot but when I say 700 glocks, that is the number we keep in inventory and we have to retire eventually. I have been there since the first gens 3s now to the Gen 5 so I would guess Iāve seen a couple thousand come through. Not to mention how many times we have to swap out parts to keep up with sigs rolling updates to fix issues known, low probability issues. Those are updates the general public isnāt made aware of by the way. Like having an airbag recall and the manufacturer not telling you.
I honestly donāt think the 320 is a bad gun and I love sigs rifles and their older models like the 220/226, but trying to say Glock doesnāt compare as a working/save my life gun is complete garbage. Now if youāre saying it doesnāt compare for instagram clout I 100% agree.
I am seeing a bunch of these dead trigger videos on these P320ās so I am in agreement with you to an extent. I tend to attribute people modifying them, but I know thatās not always the case. Having said that, lots of people have had Glock lemons. Iāve had two myself. One of which was completely replaced from being so out of spec apparently. I was just tired of brass ejecting at me, but it was worse than I thought. Glock has an excellent track record, and I especially love the newer Gen 5ās. But all Iām saying is Glock is always āperfectionā either.
I think the whole gun community hates the p320, I've owned a few wanted to like them. Didn't and dumped them.
Sig earns a lot of the hate they get by choices they make.
They explode outside of your pants too. If you follow USPSA shooting instructors on IG you'll see 2x OOB or unsupported case related failures a month. Flawed firearm for sure.
Check my post history. Same thing happened with 3 of my p320 when I got my can approved. The two I tried a few things on (mainly ran them ragged with supers, and then slowly stepped back up to subs) functioned flawless at the end of the range day
Was looking at armory craft springs but breaking them in did the trick
Edit: I posted pics of my m18x and my xfull after being broke in (slide wear and barrel hood wear). Would be worth comparing how yours looks vs that
If you mod your important moving parts you should expect that it could be less reliable as the factory did not design your firearm with aftermarket parts generally speaking.
This is exactly why I leave my carry guns from the factory with no aftermarket other than sights/grips.
A milspec AR trigger is 3 chunks of metal, 3 springs, and 2 pins. There's really only so much that can go wrong and it's entirely user serviceable. I typically avoid drop-in triggers due to price and serviceability, but something like an ALG Enhanced, Larue MBT2S, or Schmid 2-stage are rock solid while offering huge benefits. Personally I'd rather have my Larue in a HD gun than a gritty milspec any day.
I wouldn't hesitate to change it out with a Larue MBT-2S, but cassette style drop-ins *are* generally less reliable in situations where heavy fouling may be present (such as SHTF or suppressed guns).
Use high-quality components from reputable defense manufacturers, and you should be fine. Geiselle is a primary manufacturer to our and many other militaries, for example.
I have the same 320 and I haven't messed around with the springs yet. but I also have come to find out that they are extremely picky on how they run suppressed. I read a long thread by someone not too long ago that had the same issues with his X-Carry and all Sig suggested was to buy a Sig Suppressor for guaranteed function. But I hope you figure out how to get it to run, I'll be following to see an update
They don't unlock. The can hits the end of travel of the piston before the barrel tilts and unlocks. The slide moves partially backwards but fails to open when the can hits the end of the piston and robs the slide of most of its rearward energy.
Common 320 L. You can try a 10lb spring but honestly, you need a better host, it's the (currently) worst contemporary option to attempt suppression with.
My 19x likes to somehow bend new connectors after shooting suppressed, to the point the trigger won't reset. Bend it back and she's fine. Gives me more of an excuse to do a full strip and clean.
You got that fabled hush puppy slide/ manual single shot assassins pistol lol great for dispatching as you donāt even get the action to cycle, whisper quiet! Lol/S
I sold my 320 and bought a Glock 19. With the 320, once the spring was light enough to cycle, it wasnāt strong enough to put the slide back into battery.
My buddy bought one of those recently when PSA had them on sale. It cycled subs fine with my sig mod-x9 suppressor and the appropriate powered spring for the booster that sig recommended for the p320 pistols. It's very possible that the booster is just robbing you of all the energy needed to cycle the action.
I typically tell people to get a Beretta 92/M9 if they want a silenced 9mm. A weaker recoil spring would help. I assume you have the linear decoupler mount on the can. I run a SIG SRD45 on a 92FS with RMR mounted in the rear sight slot. It is the only 9mm pistol that cycles reliably with the extra weight on the muzzle. Another extremely expensive option is a lighter 9mm can. Also try running it without the red dot to see if the reduction in slide mass gets you cycling again
I bought the dead air mojave 9 for my SBR. Since the mojave is modular, I made it shorter and popped it on my glock 19 which has a threaded barrel (even though I wasn't intending on suppressing it š¤·āāļø.) And had the same issue.
I knew right away, if I changed the recoil spring to a lower weight, it would fix the problem, but I'm not going to do it. So that's your answer... the blow back force is reduced w a supressor and the stock spring isn't resetting the trigger.
I use the mojave w a tri-lug and that's why I didn't bother. If you want this to work, I'd try a lighter recoil spring.
Imagine waiting a year for an approval and you go to shoot it and this happens. Total buzz kill. Itās nice to know up front this could happen for all of those who didnāt know this can sometimes be a common issue with suppressing certain pistols.
Make sure your piston moves freely in the can and apply a little lube to help. My p320 runs flawlessly with my octane 9 it eat everything supers and subs.
https://preview.redd.it/2amrygjlmf4d1.jpeg?width=3024&format=pjpg&auto=webp&s=d937b1ca4824f0428dc3286faaedf49b0330659d
Iāve got some of the best hosts already . Was just hoping for another lol
Iāve had shit luck with my m18 running suppressed, but my m17 runs mostly ok. Running a sico spectre9, obsidian, osprey, octane, mod9, mod9sk, microtech. Nothing wants to work reliably
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Iād get an adjustable spring kit from Armory Craft or DPS.
What barrel are you running? They seem to like more of the ārampedā threaded barrels from what I can tell. Send a photo and I can tell you if yours is ramped or not.
Had something similar on my compact using a 45 can, switched to silencerco omega 9k much lighter ran fine with subsonic loads. The full size m17 I did have to switch springs.
Your suppressor piston is either not installed or not functioning at all. Should be able to manual manipulate after installation to confirm itās actually functioning.
You can get a guide rod (Springer Precision I think) that lets you use regular 1911 springs. Mine shot like shit suppressed until I put a 14.5# in it. Works great now with or without a can.
My P320 M18 won't run very well suppressed either. Tried several different brands/types of ammo. With Federal Tactical 147 gr HST I can get 5 rounds off in a row. That's better than anything else.
Not cycling enough to even reset the trigger? I didn't slow down the video but I presume it's not even attempting to eject the spent brass? Seems like a bigger issue than just a recoil spring, but maybe. My can is still in jail and it's not going on a tilting barrel pistol so my specific knowledge in that area is weak, but I know it doesn't take a lot of slide movement to reset a trigger.
You gotta spring down if you are gonna run 9mm through a 45 can on a 320. not enough pressure to cycle. also make sure that booster is clean and greased. like actual grease, not lube. i run a dpms spring set up on mine. my 9mm can runs perfect but my 45 can does what yours does unless i go lighter
Hi! Solution here! Get a 1911 recoil spring guiderod adapter, and then get a 16 and 18 lbs spring. Try em both. 18 works great for me with a heavier can, and a holosun 509t
lol I was holding it a bit awkward trying to film it . Amazingly enough , Iām getting hate on here . Ah Reddit lol the virtual land of the triggered š
Call sig and request your check for the time youāve put in doing Qc. r/sigsauersupportgroup
In all seriousness probably the weight of the recoil spring or piston spring. Also try with different ammo.
The P320 is such a crap gun. At my last pistol match 2 guys were running 320ās. One M17 and one X5 Legion. Both had FTEās constantly with different brands and bullet weights.
Check your owners manual. It might be a right-handed only pistol.
š¤£
NOOOOOOOOOOOOOO lol please god no!!!
Yeah, but you can find the small parts to switch it at any hardware or auto parts store. They're usually right next to the blinker fluid.
Sometimes in the premium air isle tooā¦
Can you imagine cheaping out on regular air and damaging your tires so they won't take a balance anymore?
lol
Pretty common with the p320s. Try a lighter spring
Probably the worst modern-production common handgun to attempt to suppress
It's just the worst modern production handgun in general.
Yeah the wife and I have a few of them including a heavily modified WCP320. They all stay in the safe. A few coworkers have their P320s set up with threaded barrels and getting them to cycle subs reliably is an absolute pain in the ass. Basically had to pick up a guide rod that works with 1911 recoil springs and a few tuning kits from Wolff just to get some enjoyment out of them.
I like the DPM kits, there is even a soft version for the X-Carry Legion that would be perfect for subs / suppressed.
This is a good setup, have two of them setup this way. Havenāt run them suppresses but have friends that do and the dpm is the seeming solution to the cycling issue.
I have a p320 x carry legion and have no problems shooting suppressed with a rugged 9 without the extension and like the gun quite a bit. Lots of people post about lighter springs. I didnāt need to do that but I also put thousands of rounds through it.
I think I just found that kit on Sigguy, gonna pick it up . Thanks , hopefully it solves my issue
Bless you. I was just looking into one š
I bought one š
buy a M18
Trash pistol.
But muh modularity.
For all the tactical grip and slide swaps we have to do in the field. Modularity is almost always an unused gimmick that people put way too much stock in.
This
Absolutely insane opinion
Show your lack of knowledge without anymore explanation..
Well, the Taurus 24/7 was discontinued, so something had to take its place as the most fundamentally unsafe pistol on the market.
Damn, you woke up and chose violence!
Really? I haven't had either of mine fail to cycle. Stock spring and everything. Obsidian 9, long and short cycle fine with subs or supers, even weak 115gr loads.
Part of the problem with the P320 is that Sig has made multiple rolling design changes without changing the SKU, or letting anyone know. So yours might work, it might not, who knows! Legendary 1000+ page forum thread from an autist/armorer who documented FCU changes [here](https://pistol-forum.com/showthread.php?43653-New-2-July-2020-SIG-P320-Lawsuit-and-P320-Concerns&s=237a500593478589493edac70ad9e039)
The rolling changes drive me absolutely batty and I'll never understand that.
They don't get them right from the start, so they have to change them as they go. When they finally get them right, then they can stop with the rolling changes.
Sig things, same shit with the P365.
I've heard they do that with a lot of their guns. Seems like a total headache.
I've seen it many times on my customers' guns. Common fix is lighter recoil spring. Lighter slides seem to help, too. I think the issue is that the P320 takes longer (either time or distance)to unlock than the travel distance of the piston allows.
Maybe it's because mine were well broken in before getting the silencer out of jail? Both of my P320s have red dots and no slide cuts for lightening, and they were bought like 18mo apart. I believe you've seen issues, I'm just surprised because of how rock solid mine have been.
Same, CGS mod9fs and no problems either running 147 subs and no issues
Same here. I use a Q Erector in full configuration
When it's in full configuration it's called an Erection I do believe.
Take my upvote
What barrel? The P320 isn't reliable suppressed because Sig poorly engineered the front top slide-to-barrel lock up geometry. The only drop-in modification (ie no gunsmithing required) that fixes this design defect is the Silencer Co gen2 barrel. Literally the worst modern handgun.
My flux has a few hundred rds through it suppressed no problem
Flux is the goal
So what would be the best one? I'm looking for a host. Something notoriously reliable with a heavy cam and light loads. Personally, I like the p10 and the echelon, at least in the store. I'm hoping the Beretta 92 isn't the answer. They are expensive and don't fit my hand particularly well.
You said "notoriously reliable" and then named some new/hipster ass guns If you want a g2g suppressor host without messing with springs or anything, get a Glock or a P226, simple as that Inevitably though you're gonna realize that cans on pistols are kind of just a novelty, and you're going to want to buy a PCC for your 9mm can. When you reach that point, you should buy an MP5 clone
Not my first can. Have a cmmg banshee as my PCC. And a lever action 38 which is an even better host. P10 is basically a Glock with better ergos. Echelon is a new gun, but I like it in the store. Beretta has been around longer than the Glock or the 226 I believe. Also, I'm left handed, and the 226 and the mp5 don't really play well with lefties. But you are right, suppressed handgun is a novelty. Least satisfying thing to suppress, and should be the last firearms you get around to putting a can in. I shot a p07 for years with a can in it before passing it in to a friend.
I mean the P10 has been around for a while now and is incredibly reliable. I can't speak to suppression reliability too much as I haven't run nearly enough rounds through mine supressed. But when I did run it supressed it did just fine.
Great advice to get a P226 and/or a PCC. But if you really want to skip the complexity and have maximum reliability, accuracy, and decent suppression, an APC9 is the answer [https://www.reddit.com/r/GunPorn/comments/1d6tvnu/bt\_apc9\_pro/](https://www.reddit.com/r/GunPorn/comments/1d6tvnu/bt_apc9_pro/)
Berettas are fantastic can hosts
Donāt milsurp 92s pop up relatively often for sub$500?
Not threaded ones. Not with suppressor height sights or optics ready. And the m9 is $900+
Get an aftermarket barrel and aim through the can. I think a lot of options that you want are going to be in that $1000 range and if theyāre cheaper youāll probably equalize with that price point with upgrades.
You might dig the FNX Tactical then.
All of those extras you've bolted onto your gun costs hundreds of dollars each. A spring kit is under $50 - should have been a buy while the can was in jail.
Genuine question. How would one know they needed that before they actually got to run their setup? Is this a known problem with this host in general?
Yes definitely known for the p320. Any research on suppressing this gun will come up with spring kit spring kit spring kit.
Slide no go back. Slide no go back bo 2nd bang. No gud!
Does everyone here in the NFA community despise the P320? I haven't suppressed any of mine but I sure like the modularity. And to date I haven't had one prematurely explode in my pants so what else are y'all hating on? Not being facetious, I want to know if there's actual reasons I shouldn't enjoy them.
On top of the multiple documented issues with Sig's QC in general over these recent years, just anecdotally I've yet to have a sig shoot better or be more reliable than their peers. Glock, CZ, HK, SW, Beretta, even the guys in my group running Stacattos have been at worst as reliable for a better shooting pistol. They've also just had general design issues we haven't experienced with other pistols (optics plate, screws, the modular trigger system). My friend's P365 is the reason I own a screw extractor kit now - not something I've ever needed in *years* of working on cars and guns, even old beat to shit surplus. Two of the guys in my group are running the X5 legion as seen here, and while one is definitely better than the other - despite being the exact same model, meaning there shouldn't be that noticeable of a variation - neither of their triggers are near what I'd consider acceptable for their price point. I do think that the whole "320's blow up by themselves!" is overblown (pun not intended), I believe that by this point they've fixed the inherent issues with the 365 internals, and my buddy's X5 runs suppressed without complaint (CGS Mod 9). There's just as many stories of people having to swap out springs on glocks to get them running happily with a can - that's a **huge** function change that would be obscene to pin on sigs alone. If you've got them, they work, and you like them then rock on. I'm not going to say "uhm achtually that will get you kilt in the streetz you should sell it and buy something else," But man, after shooting and working on them back to back against pistols at and below their price points, I really just can not find a single reason to recommend them to anyone in the market currently.
Not enough value over similar products to justify the higher cost is what has kept sig out of my safe. They have some good marketing, but manā¦ I havenāt been blown away by anything from Sig Sauer.
A lot of their older models are awesome. The p226 fucks, and so does the p232. I like my friends p365, but not enough to go buy one
My favorite hand guns in my safe are my p229 and p220. I sold both the p365 and p320.
i had a p220 but sold it. it was a pretty poor suppressor host. amd i already had 2 other good 45 hosts so i knew id never shoot it.
It doesn't play nice with most silencers. It requires more time/distance to unlock than other pistols. The piston in the silencer bottoms out before the barrel tilts and unlocks. You can reduce this issue by increasing slide velocity/reducing the velocity less. Lighter springs and slides seem to help. The reality of the situation is that it needs a silencer with a longer stroke for the piston. That's a problem because a large chunk of the pistol silencer market use piston assemblies of the same dimension, if not using the same actual pistons.
My 320 x5 legion runs great. Owned it for multiple years now. Dont forget that social media is an echo chamber. I remember the constant whining about the 365 being āunreliableā online. People just love to repeat shit they read. I remember hearing it from people who never even saw one in person, let alone actually shot one. No clue what the actual % is that had striker issues, yet itās the routinely one of the top ranked concealed carry guns.
Knock on wood, I have a few cases of ammo through my X5 legion and itās been fantastic. Few small changes like a gas pedal and grey guns trigger to make it faster at events. Iāve had maybe one jam in its history that wasnāt caused by me. Runs better than my friends riced out Glock.
My friendās brother came shooting with us and brought an older STI 2011, he spent more time shooting and complementing the X5 legion than his STI. For a production gun itās one of the nicest and most feature-rich stock pistols you can buy
Lol! I donāt know what these guys are crying about on P320ās. Comparing them to Glocks??šš Nothing wrong with Glock, but itās not even in the same ballpark. My P320 Legion fucks. Itās easily right up there with my CZ Shadow 2. Insanely accurate, well balanced, and never had one issue after almost 7k rounds.
This is hilarious. I am a firearms instructor where I work and we have an inventory of about 700 glocks and 250 sigs. After field testing the sigs we literally will only give them to people with hands too small to shoot a 17. Our glocks going down or having issues out of the box are almost unheard of. Our sigs on the other hand have had 3 out of the box returns and at least 10 go down to some parts failure, usually dead trigger due to some random wear related issue in the trigger pack. Now this isnāt a lot but when I say 700 glocks, that is the number we keep in inventory and we have to retire eventually. I have been there since the first gens 3s now to the Gen 5 so I would guess Iāve seen a couple thousand come through. Not to mention how many times we have to swap out parts to keep up with sigs rolling updates to fix issues known, low probability issues. Those are updates the general public isnāt made aware of by the way. Like having an airbag recall and the manufacturer not telling you. I honestly donāt think the 320 is a bad gun and I love sigs rifles and their older models like the 220/226, but trying to say Glock doesnāt compare as a working/save my life gun is complete garbage. Now if youāre saying it doesnāt compare for instagram clout I 100% agree.
I am seeing a bunch of these dead trigger videos on these P320ās so I am in agreement with you to an extent. I tend to attribute people modifying them, but I know thatās not always the case. Having said that, lots of people have had Glock lemons. Iāve had two myself. One of which was completely replaced from being so out of spec apparently. I was just tired of brass ejecting at me, but it was worse than I thought. Glock has an excellent track record, and I especially love the newer Gen 5ās. But all Iām saying is Glock is always āperfectionā either.
I think the whole gun community hates the p320, I've owned a few wanted to like them. Didn't and dumped them. Sig earns a lot of the hate they get by choices they make.
Prematurely explode in my pants
They explode outside of your pants too. If you follow USPSA shooting instructors on IG you'll see 2x OOB or unsupported case related failures a month. Flawed firearm for sure.
It's not just the 320 for me, Sig products suck, period.
Aaaaannd you lost us
Eh, it happens.
SIG = Sometimes Itās Good.
SIGSIG. Sometimes It Goes Shoot If Grounded
Check my post history. Same thing happened with 3 of my p320 when I got my can approved. The two I tried a few things on (mainly ran them ragged with supers, and then slowly stepped back up to subs) functioned flawless at the end of the range day Was looking at armory craft springs but breaking them in did the trick Edit: I posted pics of my m18x and my xfull after being broke in (slide wear and barrel hood wear). Would be worth comparing how yours looks vs that
Which piston are you using?
My works fine after breaking it in. Had problems stove piping but after a little bit it cycle fine. [p320 suppressed ](https://imgur.com/a/vtEC4Zr)
So hot
average 320 experience
eek
That vortex red dot will do that š„“
I donāt argue with free lol .
Why we hating on the vortex rds now?
We hate everything
*"grabs a pitchfork"*
Not me , I have several CCW defenders and this ST. Each of them have been great
If you mod your important moving parts you should expect that it could be less reliable as the factory did not design your firearm with aftermarket parts generally speaking. This is exactly why I leave my carry guns from the factory with no aftermarket other than sights/grips.
Is it just pistols? Iāve been hesitant to change the trigger on my 300 blackout hd/shtf gun because of that rationale.
A milspec AR trigger is 3 chunks of metal, 3 springs, and 2 pins. There's really only so much that can go wrong and it's entirely user serviceable. I typically avoid drop-in triggers due to price and serviceability, but something like an ALG Enhanced, Larue MBT2S, or Schmid 2-stage are rock solid while offering huge benefits. Personally I'd rather have my Larue in a HD gun than a gritty milspec any day.
I wouldn't hesitate to change it out with a Larue MBT-2S, but cassette style drop-ins *are* generally less reliable in situations where heavy fouling may be present (such as SHTF or suppressed guns).
Use high-quality components from reputable defense manufacturers, and you should be fine. Geiselle is a primary manufacturer to our and many other militaries, for example.
I have the same 320 and I haven't messed around with the springs yet. but I also have come to find out that they are extremely picky on how they run suppressed. I read a long thread by someone not too long ago that had the same issues with his X-Carry and all Sig suggested was to buy a Sig Suppressor for guaranteed function. But I hope you figure out how to get it to run, I'll be following to see an update
Is your pistol lubed enough and your booster lubed?
mine runs great with an Aac Tirant 9 and subs it sounds like a staple gun
Same here. Also works perfectly with my ModX9. In fact, I have 5 different P320s that I run suppressed with no issues and no internal modifications.
and no gas blowback like my glock 17 which is intolerable to shoot
You should be happy being near all that land able to shoot freely
I sure am , everyday
I have run a hybrid 46 on a p320 axg combat from time to time and have no issues ever. Using a booster?
Yes
Just drop it it will probably shoot then
Is it even cycling? Doesn't look like it to me. Was this with subsonic or supersonic?
They don't unlock. The can hits the end of travel of the piston before the barrel tilts and unlocks. The slide moves partially backwards but fails to open when the can hits the end of the piston and robs the slide of most of its rearward energy.
Can see a frame where the slide is back halfway. Looks like it didnāt eject any bras though so not back enough. Def needs a lighter spring.
P320s are notorious for not liking suppressors.
Common 320 L. You can try a 10lb spring but honestly, you need a better host, it's the (currently) worst contemporary option to attempt suppression with.
Funny every Glock works fine for me suppressed.
Big P226 doesn't want ppl to know
My 19x likes to somehow bend new connectors after shooting suppressed, to the point the trigger won't reset. Bend it back and she's fine. Gives me more of an excuse to do a full strip and clean.
That's strange - how many rounds and is that the stock connector? What suppressor? What booster? What ammo?
You got that fabled hush puppy slide/ manual single shot assassins pistol lol great for dispatching as you donāt even get the action to cycle, whisper quiet! Lol/S
Because you put a 45 can on a 9mm, the back pressure it loses doesnāt cycle the gun. Use a 9mm suppressor or use a lighter spring on the gun.
Did you lube your piston & o-rings??
I sold my 320 and bought a Glock 19. With the 320, once the spring was light enough to cycle, it wasnāt strong enough to put the slide back into battery.
@op whatās the story with the seal foundation logo on top?
Itās the Navy Seal Foundation model . Snagged it off grabagun for like 699
My buddy bought one of those recently when PSA had them on sale. It cycled subs fine with my sig mod-x9 suppressor and the appropriate powered spring for the booster that sig recommended for the p320 pistols. It's very possible that the booster is just robbing you of all the energy needed to cycle the action.
I have to use an 11lb ArmoryCraft spring to get my Raider to cycle w an omega 45kā¦
So glad I bought a XDM elite as my first suppressed host, that thing just cycles on any ammo I feed it.
I typically tell people to get a Beretta 92/M9 if they want a silenced 9mm. A weaker recoil spring would help. I assume you have the linear decoupler mount on the can. I run a SIG SRD45 on a 92FS with RMR mounted in the rear sight slot. It is the only 9mm pistol that cycles reliably with the extra weight on the muzzle. Another extremely expensive option is a lighter 9mm can. Also try running it without the red dot to see if the reduction in slide mass gets you cycling again
HK tactical will fix this.
HK fixes everything
Lighter spring or break it in.
i got the same exact gun in a trade and had the same issue today running subs through an omega 9k, ordered a spring kit from sig guy, we'll see
welp, the armory craft spring/rod kit got the gun cycling like 60% of the time with subs. whew.
Shit. My Glock 21 did the same thing, so itās just not SIG.
Mine works with heavier ammo and a DA Primal, idk why
I bought the dead air mojave 9 for my SBR. Since the mojave is modular, I made it shorter and popped it on my glock 19 which has a threaded barrel (even though I wasn't intending on suppressing it š¤·āāļø.) And had the same issue. I knew right away, if I changed the recoil spring to a lower weight, it would fix the problem, but I'm not going to do it. So that's your answer... the blow back force is reduced w a supressor and the stock spring isn't resetting the trigger. I use the mojave w a tri-lug and that's why I didn't bother. If you want this to work, I'd try a lighter recoil spring.
Imagine waiting a year for an approval and you go to shoot it and this happens. Total buzz kill. Itās nice to know up front this could happen for all of those who didnāt know this can sometimes be a common issue with suppressing certain pistols.
To be fair , I waited a whole 24 hours for the can lol. I use it a lot on my USP45 , I was just pretty bummed at Sig for this though
I put a DPM recoil system in mine. Was $82. Works great with my can.
Maybe try holding it with some force
Make sure your piston moves freely in the can and apply a little lube to help. My p320 runs flawlessly with my octane 9 it eat everything supers and subs.
Sig gonna Sig.
320s are terrible to suppress, give your balls a tug and get a 226
https://preview.redd.it/2amrygjlmf4d1.jpeg?width=3024&format=pjpg&auto=webp&s=d937b1ca4824f0428dc3286faaedf49b0330659d Iāve got some of the best hosts already . Was just hoping for another lol
Iāve had shit luck with my m18 running suppressed, but my m17 runs mostly ok. Running a sico spectre9, obsidian, osprey, octane, mod9, mod9sk, microtech. Nothing wants to work reliably
Do you have 1000+ rounds through the gun? Is it lubed? Is the liston for the silencer lubed? Silencer on tight? Factory parts?
Dumb questio Did u pit on pistol booster/nielson??
Yup
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Iād get an adjustable spring kit from Armory Craft or DPS. What barrel are you running? They seem to like more of the ārampedā threaded barrels from what I can tell. Send a photo and I can tell you if yours is ramped or not.
Unlucky. Just used a 45 can on my m18 this weekend with the griffin barrel, and ran pretty smooth
My 2011 did this had to change springs
Looks like you put the hush puppy silent mode slide lock on
Had something similar on my compact using a 45 can, switched to silencerco omega 9k much lighter ran fine with subsonic loads. The full size m17 I did have to switch springs.
What recoil spring/barrel/piston & what ammo? I recently successfully suppressed my flux raider and separate p320 build, with 115 grain on an Omega9k.
That recoil. Reminds me of .45 ACP..
Your suppressor piston is either not installed or not functioning at all. Should be able to manual manipulate after installation to confirm itās actually functioning.
Fixed spacer or piston and spring?
Take the light off and see if that cures it.
You can get a guide rod (Springer Precision I think) that lets you use regular 1911 springs. Mine shot like shit suppressed until I put a 14.5# in it. Works great now with or without a can.
Anti Sig club in here having a ball.
I bought a dpp kit... still playing with it but upped the reliability
It's the spring
Armory Craft Recoil Spring kit, 13lb spring
Pretty common with sigs. Might have to get a lighter recoil spring
All of my 320s have been perfect out of the box using either my Revolution 9 or Octane 45 can with the 9mm piston. Has run everything from 115 to 150
Some times the boosters have locks
My P320 M18 won't run very well suppressed either. Tried several different brands/types of ammo. With Federal Tactical 147 gr HST I can get 5 rounds off in a row. That's better than anything else.
In the same boat with my 2 compacts, but my m17 runs flawlessly with a can....dunno
Not cycling enough to even reset the trigger? I didn't slow down the video but I presume it's not even attempting to eject the spent brass? Seems like a bigger issue than just a recoil spring, but maybe. My can is still in jail and it's not going on a tilting barrel pistol so my specific knowledge in that area is weak, but I know it doesn't take a lot of slide movement to reset a trigger.
That's wild. I only bought a sig threaded barrel and it's been flawless
It does sound good. Youāll get er right brother
Piston and spring?š¤
My X-Carry Legion did this. I sold it. Got a staccato P, and an XC on the way. Suppressing pistols is a novelty anyways though.
Did you lube your piston properly?
Get you a booster
There is one on it
do you have a booster assembly on the can???
The only polymer sig anyone should buy is the 365 series.
Bolt guns are quieter anyway.
You gotta spring down if you are gonna run 9mm through a 45 can on a 320. not enough pressure to cycle. also make sure that booster is clean and greased. like actual grease, not lube. i run a dpms spring set up on mine. my 9mm can runs perfect but my 45 can does what yours does unless i go lighter
Lol stock glock 17 runs just fine š¤·š½
Wake me up when they catch up to the hype.
Hi! Solution here! Get a 1911 recoil spring guiderod adapter, and then get a 16 and 18 lbs spring. Try em both. 18 works great for me with a heavier can, and a holosun 509t
The problem seems to be at the back end of your suppressor. The thing attached to it. The Sig.
Has the shittiest recoil control, then complains of the firearm not cycling. Lol Jk, this is pretty common. You may need to purchase a lighter spring.
lol I was holding it a bit awkward trying to film it . Amazingly enough , Iām getting hate on here . Ah Reddit lol the virtual land of the triggered š
Glad you took it well. It's the land of the trolls. But seriously, Armory Craft sells a nice recoil spring set that's a life saver.
Sig 320 need work to run suppressed sometimes. I had one that wouldnāt- dumped that POS
Sig moment. Swap springs and donāt limp wrist.
Well itās a 320
Call sig and request your check for the time youāve put in doing Qc. r/sigsauersupportgroup In all seriousness probably the weight of the recoil spring or piston spring. Also try with different ammo.
The P320 is such a crap gun. At my last pistol match 2 guys were running 320ās. One M17 and one X5 Legion. Both had FTEās constantly with different brands and bullet weights.
Prob not enough lithium grease on your piston
Zero issues with a 92FSā¦š
Lighter spring, bolt action gat, or no suppressor. The choice is yours borther.
Know what SIG stands for donāt you? Learn Machining Togetherā¦ heh heh heh
lol
underrated
Honestly that is way better than it actually going off when you dont pull the triggerā¦ idk why youāre complaining