Home > AR15 Parts > Assembled Upper Receivers >

12.5" 5.56 Upper Receiver 10" MLOK Rail
12.5" 5.56 Upper Receiver with 10" MLOK Handguard 125556NBN10MLOK

Our Price: $349.99

Product Code: 125556NBN10MLOK

Add Auto Bolt Carrier Group:

Add Charging Handle:


PMA 12.5” 5.56 AR15 Upper Receiver 10” MLOK Handguard

MFR#: 125556NBN10MLOK

Barrel Length:

Barrel Profile: SOCOM

Gas System: Carbine

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: A3

Handguard Type: PMA 10" MLOK Rail

: PMA 12.5" 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 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 MILSPECs and finished in hard coat type III anodized black for durability. These uppers are made for us right here in the USA.

Share your knowledge of this product. Be the first to write a review »