TacFire Bu-556-10 Pistol Upper Assembly 5.56X45mm Nato Caliber With 10" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard For AR-Platform Includes Bolt Carrier Group Chambered In 5.56, This Pistol Upper Is Completely Built And Ready To Be Put On a Lower. Includes a Bolt Carrier Group. Type: Complete Caliber: 5.56X45mm Nato Sights: None, Optic Ready Barrel Length: 10" Barrel Finish: Black Nitride Receiver Finish: Black Anodized Handguards: M-LOK Handguard Finish: Black Barrel Length Range: 10" To 10.99"
