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Just thought about this 'striker fired pistol' topic in light of the SIG 320 unintended discharges - these videos were great explorations of the mechanism of the problem, and pretty well makes it clear that there IS a problem.
https://www.youtube.com/watch?v=KuTxhHZ0uiA and
https://www.youtube.com/watch?v=1RIvHsZZ9ho
Supposedly the 'not a problem' was 'fixed' or 'upgraded'. Of course the SIG attorneys made sure the 'upgrade' language was carefully worded so it wasn't so much fixing a 'problem' as it was just an 'upgrade'. The pre and post-'upgrade' video here is interesting in that light -
https://www.youtube.com/watch?v=VmwpkJuIR00.
Now I generally like SIG firearms, although I also generally dislike non-exposed-hammer guns, so my only SIG at this point is a P-938 (mini-1911 in 9mm).
It is a great, easy-to-shoot mini-compact 9mm, and works even for those like me with long skinny fingers.
I have reconciled myself to liking the Glock, and since it doesn't really have the striker fully tensioned until you pull the trigger, and there are decent and time-proven safety mechanisms, I trust the Glock but would NOT trust the SIG 320.
However even better than the Glock, the Ruger RXM seems to have many of the improvements one might desire vs the Gen-3 Glock.
One thing about the 'modularity' of the Glocks though (and other striker-fired guns I suppose) is that there is temptation to swap out parts, and even such a 'basic' swap as a new slide,
affects the sear/striker interface - and that is asking for trouble. Either all the fire control parts should be affixed to the same chassis, or where impossible due to design (like the striker guns), then the alignments need to be something MUCH more precise than a slide and rails that are abbreviated and subject to wear.
I would recommend that anyone with a Glock get an 'armorers rear slide plate' and use it to visualize directly the amount and consistency of sear-striker engagement. They cost about $6 (or one could modify a regular one I suppose - but having it be orange is kind of a nice way to be sure you don't forget and try to fire the gun with the partial plate in place).
https://www.glockstore.com/Glock-Armore ... over-Plate. I suppose a similar part would work to inspect other similar firearms.
I may get used enough to the Ruger RXM (very similar to a Glock Gen 3) to depend on it for CCW - mostly I got one because it was not much more expensive than getting a new 'cut' slide so I coould see if I would like a red-dot sight on a CCW gun (being left eye dominant and used to closing my left eye reflexively whenever I start to shoot a handgun isn't exactly a helpful thing with a red-dot). But the gun itself is relable and ergonomically better than the Glock-19 in my opinion.
So far though, the best sights for me on a handgun for CCW or ordinary (non-paper-target-shooting) purposes is a 'ghost ring' rear, and the tritium ghost ring setup for the Glock is awesome. Not able to find quite the same for a 1911 or Taurus PT-92, even though they are my preferred 'platforms'. The nice thing about the ghost ring Glock setup is that with an underbarrel light, they are VERY useable at night in either dim light, lateral artificial light, or zero light.
https://www.ameriglo.com/products/details/gl-225
Anyway, with the SIG 320 issues, my skepticism of non-exposed-hammer guns is still present. Pretty much with ANY gun, the fewer parts, the less 'fitting' needed, and the simpler the mechanism, the better in my opinion. The 1911 is kind of like an Uzi - and the Marlin 1894's - just a few parts, most of them rather large, near-zero hand-fitting needed, and basic, time-tested mechanisms - compare to the SIG 320's, Calico 950's, and Winchester 92's, respectively. I prefer the first series, although the Win-92's are certainly good enough (the SIG 320 I see no reason to bother with and the Calico 950's are pretty cool, but complex enough to be more 'range toy' than practical gun for home defense).