Hangfire? SPORT-FIRE! Slap magazine up Pull charging handle to rear Observe extracting round Release charging handle Tap forward assist FIRE next round
Has something changed in 30 years? You have to let the bolt go 'home' (release the bolt catch) under spring pressure to chamber a round or the locking lugs wont seat and it wont fire unless you push the forward assist. You can't have a round chambered in an AR15/M16 without the bolt home...? We had to practice chambering a round in complete silence, slowly riding the bolt home and then pushing the forward assist to lock the bolt home. The original M16 did not have the forward assist like the A1 and later variants and was an issue for the first units to get 'the black rifle' in Vietnam. The lug would not lock in when dirty or sandy and the weapon would not fire, not good. The forward assist in the A1 fixed this and diligent cleaning was made mandatory.
