So there I was, mounting a VLTOR stock with a Mil-Spec buffer tube to my AR. After I removed the flange (?) the rear receiver-retaining pin spring went screaming across the room. I eventually found it, and as I retrieved it from the carpet that seemed so insidiously wishing to hide and claim it, it became snagged and as I unsnarled it from the evil pile of my carpet it had a kink in it.
I snipped off the offending ~ 3/16” section. Then I stretched the spring and re-installed it.
I checked for a firm detent from the pin, and the feeling was positive that the spring forced the detent to lock against the stock-retaining pin. I experimented at the range, and after three magazines emptied in ~ 4-minutes of fire (I was not going for accuracy), my “shock and vibration test” did not result in any loosening of the rear receiver-retaining pin.
Question…is this a safe weapon, or will I see a bolt through my forehead in the future?