Battle Arms Development manufactures high quality AR firearms, parts, and accessories. Their complete Workhorse upper assembly is chambered for 5.56 NATO and would be a fantastic addition to any pistol build or to upgrade an older weapon. It does come fully assembled and is ready to be slapped onto your complete pistol lower. The 10.5" nitride barrel has an A2 profile, 1:8 twist, M4 feed ramps, and is sporting an A2 flash hider on 1/2x28 threads. As a complete upper, BAD also installed a nitride bolt carrier group and an upgraded ambidextrous Rack-15 charging handle in every assembly. Workhorse pistol uppers feature a 9.5" free float M-LOK handguard with a continuous picatinny top rail and plenty of 3/6/9 o'clock M-LOK slots for mounting all of your favorite accessories. This Battle Arms Workhorse upper would be an excellent choice as an upgrade or new build component. As a reminder, installing this upper on a rifle lower would subject it to NFA rules which does require prior ATF approval and licensing.

Features and Specifications:
Manufacturer Number: WH-UR10.5B-Y-15
Battle Arms Development AR-15 Pistol Upper
Complete w/Bolt Carrier Group & Charging Handle
Barrel: 10.5" A2 Profile
Caliber: 5.56 NATO
Twist Rate: 1:8
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Nitride
Muzzle: Threaded 1/2x28 w/A2 Flash Hider
Barrel Extension: M4 Feed Ramps
Gas System: Carbine Length w/.750 Low Profile Gas Block
Receiver Style: Forged M4
Bolt Carrier Group Finish: Nitride
Charging Handle: Ambidextrous Rack-15
Handguard: 9.5" Workhorse M-LOK Free Float
Color: Black

Note:
Installing this pistol upper on a rifle lower receiver subjects it to NFA regulations and requires approval from the ATF. Check the ATF website for more information and licensing requirements.