[Grampa Dave]

You shove the clip (and yes it’s a clip) in with your thumb, but once in the bolt slams shut - while your thumb is still inserted. Yes you learn fast to pull it out fast.

Yep, even dumb old swabbies like me, usually learned after just one real life lesson as shown on the video. Ouch!

[Ace the Biker]

Went through enough weapons inspections for guard duty that I learned to pop my thumb in the receiver and retrieve it fast enough that the bolt didn’t hit it. Tried very hard to make super nuts so I could get outta walking a post. :)

I suppose that “walking my post a mile a minute and carrying my weapon with nothing in it” means nothing in this modern Army. Sorta like KP.