PSA 16" MID-LENGTH 5.56 NATO 1:7 NITRIDE 13.5" LIGHTWEIGHT M-LOK UPPER WITH NICKEL BORON BCG & CH

PRODUCT DETAILS DETAILS PSA 16" MID-LENGTH 5.56 NATO 1:7 NITRIDE 13.5" LIGHTWEIGHT M-LOK UPPER WITH NICKEL BORON BCG & CH Barrel Length: 16" Gas System: Mid-Length Barrel Profile: A2 Style Barrel Steel: 4150V Barrel Finish: Nitride Black 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: Low profile Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: M4 Hand Guard Type: PSA 13.5" M-Lok Lightweight Rail Bolt Carrier Group Included: Yes, Nickel Boron Bolt Steel: Carpenter 158 Bolt Carrier Profile: Full-Auto Charging Handle Included: Yes FEATURES Barrel: 16" 4150V Chrome Moly steel. Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. Barrel is is finished off with a PSA 13.5" Lightweight M-Lok free float rail, .750 gas block, and an A2 flash hider. Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer. Bolt Carrier Group: ToolCraft nickel boron BCG has a bolt made of mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec.