AR-STONER AR-15 A3 Upper Receiver Assembly 450 Bushmaster 16″ Barrel 15″ Ultralight M-LOK Handguard

This AR-STONER Rifle length upper features a 450 Bushmaster bolt carrier group, parkerized finish, low profile gas block, 16″ barrel, 15″ Ultralight M-LOK handguard and a heavy profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. Supplied without a rear sight, this upper is a great platform for a red dot sight or iron sights (both sold separately).

Features:

• 450 Bushmaster Bolt Carrier Group
• 15″ Ultralight M-LOK Handguard
• 16″ 1:24″ Twist Barrel