I have seen a ND with a Glock in a Safariland WML holster on the range. The officer was wearing a North Face Denali fleece and one of the little drawstring drums worked itself into the trigger guard as he was re-holstering and "PoP!" Luckily it just blew a hole in the bottom of the holster and shot into the dirt, but scared the crap out of him and the guy next to him. The drum was bit enough and at just the right angle and tension (and he applied enough re-holstering force) that it overcame the trigger safety. I'm sure there are lots of things that slipped into a Safariland WML holster that was blocked on a Glock or M&P by the trigger safety tab, but we will never know because the gun never went bang.
The P320 has no safety tab which makes it susceptible to minor pressure on the side of the trigger causing it to actuate unlike most striker fired guns.
This was a P320 in a Serpa carried loose in a purse (with other stuff):
https://abc7chicago.com/sig-sauer-la...arge/10974219/
I'd bet a box of 44 Special that the Serpa mechanism actuated, the gun came slightly unholstered, and something else worked its way into the trigger guard, and as the purse moved it actuated the trigger causing it to discharge. Would this have happened on Glock? Way less likely because of the trigger safety tab.
Ashley Catatao of Sommersville PD (Mass) was carrying a bunch duty gear with it flapping against her side (it's on video) when it smacked into her holster and "PoP!"
Most Safariland duty holsters angle the muzzle either slightly back or back quite a bit. If you are wearing a duty belt and not touching the gun at all and drew an imaginary line from the muzzle it typically wouldn't intersect a human body part (if you don't have your hand (or elbow for the short folks) on the gun then typically an "uncommanded" discharge would put a round into the floor or the seat of the car, not into a leg). Most of us know if we rest our hand on our gun (which lots of us do) that downward pressure cants the holster in towards our leg or feet.
Since quite a few of the lawsuits against SIG are claiming the gun shot them into the leg or ankle, it makes sense that there was downward pressure applied on the gun in the holster at the time it discharged, which would cant it towards the body, when the gun went off. That same pressure could hypothetically also cause the trigger to actuate if it was caught against a foreign object or part of the holster.
So if there is pressure (a swinging heavy duty bag or pressure from a hand/arm) is it really un-commanded? None of these guns were sitting stationary on a shelf in an empty room when they fired.
Mere impact such as smacking a mallet or object against a post-recall gun typically can't make the striker release. Therefore it only makes sense something is likely causing the trigger to actuate and the gun to function and discharge.
I said it earlier in this thread, but it appears to be a poor interface with the holster and/or human error. I don't want to let SIG off the hook (or the holster companies), but I think it is what it is.
T
he P320 in X5 Legion guise is extremely common in recreational action pistol shooting. I don't think we're hearing lots of complaints from those circles about the guns "just going off." The complaints are primarily from LE folks using plastic bucket Safariland duty holsters (or a Serpa in a purse).
A super easy trigger to pull is truly a super easy trigger to pull. When there are not mechanical safeties (like on a 1911/2011) to keep that super easy trigger to pull from being pulled...well...I think we are seeing what that gets.