Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223

Battle Arms Development WH-UR-10.5-223: Barrel Length: 10.5\" Gas System: Carbine Barrel Profile: A2 Barrel Steel: 4150 Chrome-Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 1/2-28 Chamber: .223 Wylde Twist Rate: 1:8 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: WORKHORSE Low Profile Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Handguard Type: WORKHORSE 9.5\" M-Lok Free Float Rail Overall Length: 18.5in