01-03-2018, 10:34 PM
Your right crusty it is the take down pin detent and spring held by the castle nut. I was thinking about the selector detent and spring are rarely lost if the grip comes loose. Added the screw driver then miss spoke about the castle nut. Old age strikes again. Lol
Tapping a hole is a good idea but have just never done it myself. My Agency issued an AR-15 to every road Trooper and it was not uncommon to get a castle nut come loose. The Armalite 16” AR-15’s did not have the castle nut staked and Department didn’t use thread locker before the rifles were issued.
Tapping a hole is a good idea but have just never done it myself. My Agency issued an AR-15 to every road Trooper and it was not uncommon to get a castle nut come loose. The Armalite 16” AR-15’s did not have the castle nut staked and Department didn’t use thread locker before the rifles were issued.

