PSA 16" MID-LENGTH 5.56 NATO 1:7 NITRIDE B5 MLOK MIDLENGTH HANDGUARD UPPER WITH BCG & CH, FDE

Barrel Length: 16" Gas System: Mid-length Barrel Profile: A2 Barrel Steel: 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: F-marked Front Sight Base Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Hand guard Type: B5 Systems Polymer FDE Hand Guard Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158 Bolt Carrier Profile: Full Auto Charging Handle included: Yes Overall Length: 24.5"