PMA 16” 5.56 AR15 Upper Receiver 13.5” MLOK Handguard
Barrel Length: 16"
Barrel Profile: SOCOM
Gas System: Carbine
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2x28
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Billet 7075 T6 Aluminum
Receiver Type: Billet A3 MOD2
Handguard Type: PMA 13" MLOK Rail
Barrel: PMA 16" 4150V Chrome Moly Vanadium steel, Nitride treated for durability and accuracy, and chambered in 5.56 NATO with a 1 in 8" twist. 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 13.5” M-LOK Rail. Manufactured from 6061-T6 aluminum extrusions right here in the USA. They are then anodized to match the uppers.
Upper: PMA Billet 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.