Description

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).
Features
- 450 Bushmaster Bolt Carrier Group
- A2 Flash Hider
- 16" 1:24" Twist Barrel
- Chambered in 450 Bushmaster 
MPN#: 466691
UA450CHB16124(P)M.875-SHG(GB)

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