All / Upper Parts / Complete Upper Receivers / 5.56/.223 Pistol Uppers All Upper Parts Complete Upper Receivers 5.56/.223 Pistol Uppers 5.56/.223 Rifle Uppers .300 Pistol Uppers .308 Upper Receivers 6.5 Creedmoor Upper Receivers Barrels Gas Blocks Bolt Carrier Groups Hand Guards Muzzle Devices Lower Parts Accessories Range Gear Merch CIV-15 Complete Upper Receiver Group 12.3" 5.56 NATO $700.00 Add To Cart