AR-STONER AR-15 Optics Ready Upper Receiver Assembly 7.62x39mm 16″ Barrel

MidwayUSA is proud to offer this AR-STONER™ Optics Ready Upper Receiver Assembly at an exceptional price! This AR-STONER™ carbine length upper features a mil-spec bolt carrier group, phosphate 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, bolt and bolt carrier assembly. This Optics Ready upper does not include a front or rear sight, and utilizes a low profile, non-railed gas block, making it a great platform for a red dot or scope (sold separately). Technical Information 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 M4 Feed Ramps: Yes Muzzle Device: A2 Flash Hider Gas System Length: Carbine Gas Block Diameter: 0.750″ Handguard: 2-Piece M4 Style Sights: None Bolt Carrier Group Included: Yes Bolt Carrier Type: Mil-Spec 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.