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Sig P322 NOT locking back

16K views 64 replies 21 participants last post by  zues287  
It’s likely due to low pressure from your ammo or the recoil spring being too heavy — meaning you need to further break it in. I also am very lucky and got a non-lemon P322. Actually, I don’t think it’s luck. I think Sig simply fixed and tweaked things as they always do. No fouling, no jamming, etc etc.

But I also wonder if my positive experience is because I exclusively shoot my P322 suppressed. I’m at 9K rounds and I think I’ve only ever shot 5 unsuppressed. And in total, I have had only one FTR and a single FTE — solely because I hadn’t cleaned the handgun in 3K rounds from its heavy carbon buildup. This was stellar, considering my Ruger MKIV Tactical begins having FTE’s after just 500 rounds, suppressed.

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My theory is that extra back pressure from the suppressor aids in reliably cycling the slide and giving it a little extra “oompf” to the slide. And because of this, I almost never have issues with the slide locking back. I can think of many two times where it didn’t lock back, on the last round. That said, the slide loves to engage after putting a fresh mag in. But it’s a non-issue for me. My HK VP9, P30SK and P30L all do the same lol.

So yeah! Try hotter rounds. Or buy a suppressor. I recommend the latter, the P322 Is a phenomenal .22LR. suppressor host. Especially under NODs. I threw an IR laser on mine for that exact reason.

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