Bushmaster AR-15 A3 Upper Receiver Assembly 450 Bushmaster 20" Barrel

This drop-in A3 upper will mount to virtually any standard AR-15 mil-spec lower receiver. Though not a long distance cartridge, accuracy has proved to be exceptional out to 200 yards with felt recoil similar to a 20 gauge shotgun. Tubular aluminum forends allow the barrel to free float from the nut forward, and chrome lining in both bore and chamber makes for long barrel life and easy cleaning. This upper receiver assembly comes complete with a charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. The upper also features a versatile flat top for mounting optical devices or accessories. Includes a 5 round magazine. 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.

Specifications and Features:

• Barrel Finish: Black Parkerized
• Barrel Length: 20 Inches
• Barrel Material: Chrome Moly Vanadium Steel
• Bolt Carrier Assembly Included: Yes
• Cartridge: 450 Bushmaster
• Chrome Lined: Yes
• Compatible With: AR-15
• Gas System Length: Carbine
• Handguard: Free Float
• Material: Aluminum
• Muzzle Device: Izzy Muzzle Brake
• Sights: No
• Threads: 11/16"-24
• Twist: 1:24 Inches
• Upper Receiver Type: A3 Flat-Top

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