Battle Arms AR-15 Workhorse Upper Receiver Assembly without BCG 5.56x45mm 16″ Barrel 15″ M-LOK Handguard Black

Original price was: $529.99.Current price is: $444.99.


Battle Arms AR-15 Workhorse Upper Receiver Assembly For Sale

The Battle Arms AR-15 Workhorse Upper Receiver Assembly is made from high-quality materials that will provide long-lasting durability. This top features a Rosco Manufacturing 4150V Chrome Molybdenum Vanadium Steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. 

The battle arms development workhorse ar-15 is finished with a low profile .750″ diameter gas block, battle arms workhorse ar-15 M-Lok free float rail, and an A2 flash hider. The battle arms development logo offers fantastic value.

Battle Arms upper receiver online

This Upper Assembly comes with the battle arms oip gen 2 ar platform rifle handguard. This low-profile rail has M-LOK slots on the sides and the base, with a full-length Picatinny rail on the top for mounting modern accessories and optics. The low-profile gas block fits nicely inside the handguard and uses a carbine-length gas tube, which is ideal for a 10.5-inch barrel.

Lastly, the Adams arms piston upper is precision made with 7075-T6 Aluminum. It has a forward assist and port door, all of which have a uniform black finish. The ar uppers feature M4 feed ramps for improved reliability as well.


  • Caliber: 5.56 NATO
  • Upper Receiver: Mil-Spec AR-15 Upper – 7075-T6 Aluminum
  • Finish: Type III Class 2 Hardcoat Anodized Finish
  • Handguard: Battle Arms Development 9.5-Inch WORKHORSE Free-Float M-LOK Rail
  • M4 Feed Ramps: Yes
  • Muzzle Device: A2 Flash Hider
  • Barrel: 10.5″ 1:7 Nitride Coated 4150 Chrome Moly Vanadium Barrel
  • Muzzle Thread Pattern: 1/2″-28 TPI
  • Gas Block: .750″ Low-Profile Gas Block
  • Gas Tube: Carbine-Length Gas tube
  • Bolt Carrier Group: Not Included
  • Charging Handle: Not Included


Made In the United States of America


Product Information

Cartridge 5.56x45mm NATO
Color Black
Finish Anodized
Material Aluminum
Barrel Length 16 Inches
Twist 1:7 Inches
Threads 1/2″-28
Barrel Contour A2
Barrel Finish Black
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Mid-Length
M4 Feed Ramps Yes
Upper Receiver Type A3 Flat-Top
Barrel Material 4150 Chrome Moly Vanadium Steel
Handguard WORKHORSE 15in M-Lok Free Float Rail
Bolt Carrier Assembly Included No
Muzzle Device A2 Flash Hider
Country of Origin United States of America
Compatible With

Delivery Information

Shipping Weight 4.455 Pounds



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