PMA 16” 5.56 AR15 Upper Receiver 13.5” MLOK Handguard

MFR#: 16556NTF135MLOK

Barrel Length: 16"

Barrel Profile: M4

Gas System: Carbine-length

Barrel Steel: 4150V Chrome Moly Vanadium

Barrel Finish: Nitride

Chrome Lining: No

Muzzle Thread: 1/2x28

Chamber: 5.56

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: A3

Handguard Type: PMA 13.5" MLOK Rail

Barrel: Ballistic Advantage 16" 4150V Chrome Moly Vanadium steel, nitride treated for durability and accuracy, and chambered in 5.56 NATO with a 1 in 7" 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 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.