PMA 16" .300 Blackout AR15 Upper Receiver 13" MLOK Handguard
Barrel Length: 16"
Barrel Profile: Government
Gas System: Pistol-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: .300 Blackout
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 Aluminum
Receiver Type: M4
Handguard Type: PMA 13" Certus MLOK Rail
Barrel: 16" 4150V Chrome Moly Vanadium steel, nitride treated for durability and accuracy, and chambered in .300 Blackout with a 1 in 7" twist. Medium Profile. Each barrel is dimpled to ensure perfect gas block alignment and durability under stress. Our nitrided steel low profile gas blocks are then installed using locktite 271 and finished with a PMA A2 Flash Hider.
Handguard: PMA 13" M-LOK Rail. Manufactured from 6061-T6 aluminum extrusions right here in the USA. They are then anodized to match the uppers.
Upper: PMA Forged 7075-T6 A3 AR upper receiver is made to meet MILSPECs and finished in hard coat type III anodized black for durability. These uppers are made for us right here in the USA by our ISO 9001 certified machine shop.