.455_Hunter
Member
Most non-Glock striker guns on today's market are the functional equivalent of carrying a Series 80 1911 with the grip safety pinned and the manual safety off.
If you look very, very carefully, at the M&P 1.0 sear/striker engagement, the factory sear has always appeared to cam the striker back. You'd need a dial indicator to measure the movement. Never struck me as an issue.
Curiousity aroused, I just put a frame in a vise and, the sear appears to cam the striker back. Not having a striker there to load the sear and the slide to limit possible vertical motion, the actual amount is a bit in question, but the sear does move the indicator backwards a repeatable amount. Getting exact data would require sacrificing a slide and the only folks really interested would be OCD nerds and liability attorneys.
While the amount isn't mechanically significant, if it's real, it does support a claim that the striker isn't fully cocked. Real world, does it really matter? Not really. Are the various aftermarket/2.0 sears different? No clue.
Sometimes guns fire without a finger on the trigger or being dropped.
That's why I like thumb safeties.