PMA 10.5" 5.56 NATO Upper Receiver 10" MLOK Handguard EXT Flash Hider
Barrel Length: 10.5"
Barrel Profile: Government
Gas System: Carbine-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2x28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: PMA EXT Flash Hider
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: PMA 10" MLOK Rail
Barrel: 10.5" 4150V Chrome Moly Vanadium steel, nitride treated for durability and accuracy, and chambered in 5.56 NATO with a 1 in 7" twist. Government 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 Extended Flash Hider.
Handguard: PMA 10" 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 MILSPEC 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 contract machine shop.