Battle Arms Development Workhorse, Upper Receiver Assembly, 223 Remington/556nato, 10.5" Barrel, Carbine-length Gas System, Anodized Finish, Black, A2 Flash Hider, Workhorse 9.5" M-lok Free Float Handguard, Does Not Include Bolt Carrier Group Or Charging Handle Wh-ur-10.5-556
Model: WORKHORSE
Product Type: Upper
Finish/Color: Anodized
Fit: AR-15
Caliber: 223 Remington
Model: WORKHORSE
Product Type: Upper
Finish/Color: Anodized
Fit: AR-15
Caliber: 223 Remington