@0:40 M4 Aircrew Survival Rifle - precursor: Stevens model 22-410, 16" barrel so ...NFA @1:11 M30 Survival Drilling - German @5:25 M6 Aircrew Survival Weapon - 15" folded, i.e. survival seat size. YouTube: M4 Survival Rifle At The Range (For Real This Time!), 9:38 - problem...