"With any round worth using it is going to have a little bark bite."
Yeah, if the gun weighed as much as the bullet, it would be just as dangerous on the back end.
I've got a Mossberg 500 from wayback where the trigger housing pin (part 59) kept creeping out even though it had a retention groove in it --to be held in by some internal sprung part in the guts. Like the grooved retaining pin in the mag housing of the 1911.
I finally gave up and ran a nut-and-bolt through it at that point. Looks like hell when the magic marker I used to blend in the screw head and nut wears off, but it's been reliable through 10^x rounds and >40 years. I wonder if they ever cured that problem at the factory.
Seems like there's a delicate design balancing act to make pins readily removable, yet firmly retained.
Terry, 230RN