My M1 got my index finger a few days after I got it. I found out the hard way that the bolt will rest nicely on the bullet guide .... until you see a speck of lint and reach in to get it ... OUCH! #$#@@#*&! (Suck finger. Nail turning black.) OWWWWW!
Way back when we used to do “inspection arms drills,” in the beginning it was quite noisy - sounded like a bunch of girls.
Purple thumbs.