PMA 16” 5.56 Upper Receiver 12” Ultralite MLOK Handguard

MFR#: PMA1655618CM12

Barrel Length: 16"

Barrel Profile: SOCOM

Gas System: Mid-length

Barrel Steel: 4150V Chrome Moly Vanadium

Barrel Finish: Nitride

Chrome Lining: No

Muzzle Thread: 1/2x28

Chamber: 5.56

Twist Rate: 1:8

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 12" Ultralite MLOK Rail

Barrel: 16" 4150V Chrome Moly Vanadium steel, nitride treated for durability and accuracy, and chambered in 5.56 NATO with a 1 in 8" twist. SOCOM 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 A2Flash Hider.

Handguard: PMA 12" Ultralite 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.