- 450 Bushmaster Bolt Carrier Group
- A2 Flash Hider
- 16" 1:24" Twist Barrel
- Chambered in 450 Bushmaster
MidwayUSA is proud to offer this AR-STONER™ Optics Ready Upper Receiver Assembly in 450 Bushmaster at an exceptional price! This AR-STONER™ carbine length upper features a 450 Bushmaster bolt carrier group, parkerized finish, low profile gas block, 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, A2 flash hider, 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).
Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.