MidwayUSA is proud to offer this AR-Stoner A3 Upper Receiver Assembly at an exceptional price! This AR-Stoner carbine length upper features a mil-spec bolt carrier group, phosphate finish, A2 fixed front sight, 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).
- Upper Receiver: A3 Flat-Top
- Barrel Length: 16"
- Barrel Contour: Heavy
- Barrel Material: 4140 Chrome Moly Steel
- Muzzle Thread Pattern: 5/8"-24
- Chrome Lined: No
- Barrel Finish: Matte Black
- Twist Rate: 1 in 10"
- Chamber: 7.62x39mm (.308 Diameter)
- Groove Diameter: .312"
- M4 Feed Ramps: Yes
- Muzzle Device: A2 Flash Hider
- Gas System Length: Carbine
- Gas Block Diameter: 0.750"
- Handguard: 2-Piece M4 Style w/ Heat Shield
- Sights: A2 Fixed Front
- Bolt Carrier Group Included: Yes
- Bolt Carrier Type: Mil-Spec
Please 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.
Use of steel-cased 7.62x39mm ammunition in the AR-15 platform may result in occasional light primer strikes due to the small diameter firing pin and hard military-style primers. Aftermarket triggers with lighter springs are not recommended.