Description PSA 16″ 300AAC M-LOK Upper The PSA 16″ 300AAC M-LOK upper is a great way to top off your AR build. Barrel: This Chrome Moly vanadium 4150V barrel is chambered in .300 AAC Blackout with a 1:8″ twist, M4 barrel extension, and a pistol-length gas system. It is finished off with a .750″ diameter gas block, PSA 13.5″ Lightweight M-Lok Partial Picatinny free float rail, and an A2 Flash Hider. Upper: The forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. These uppers are made for us right here in the USA by a mil-spec manufacturer. Bolt: Bolt is made of Mil-spec shot-peened Carpenter 158 steel. Gas key is secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is parkerized outside, and chrome lined inside. Includes: Magpul MBUS Sight Set, Black DETAILS: Barrel Length: 16″ Gas System: Pistol Length Barrel Profile: Heavy Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300 AAC Blackout Twist Rate: 1 in 8″ 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 Handguard Type: PSA 13.5″ Lightweight M-Lok Rail Partial Picatinny Free Float Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158 Bolt Carrier Profile: Full-Auto Charging Handle Included: Yes Optics: Magpul MBUS Sight Set, Black Overall Length: 24.5″ Weight as Configured: 4 lbs
