Battle Arms Workhorse 10.5" 5.56NATO Upper Assembly (No BCG No CH) - WH-UR-10.5-556

Specifications:

• Barrel Length: 10.5in
• Gas System: Carbine
• Barrel Profile: A2
• Barrel Steel: 4150 Chrome-Moly Vanadium
• Barrel Finish: Nitride
• Chrome Lining: None
• Muzzle Thread: 1/2-28
• Chamber: 5.56 NATO
• Twist Rate: 1:7
• Barrel Extension: M4
• Diameter at Gas Block: .750
• Gas Block Type: Low-profile
• Muzzle Device: A2 Flash Hider
• Receiver Material: Forged 7075 T6
• Receiver Type: M4
• Handguard Type: WORKHORSE 9.5in M-Lok Free Float Rail
• Bolt Carrier Group Included: No
• Bolt Steel: N/A
• Bolt Carrier Profile: N/A
• Charging Handle Included: No
• Overall Length: 18.5in

Barrel: Rosco Manufacturing 10.5in 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750″ diameter low-profile gas block, WORKHORSE® 9.5in M-Lok Free Float Rail, and an A2 flash hider.

Upper: Forged 7075-T6 AR upper is hard coat anodized black for durability. Featuring M4 feed ramp cuts, these upper receivers are made in the USA.