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BCM® MK12.
BCM® MK12 Specification.
Complete BCM® Rifles and Carbines include: Rifle, 1 Magazine (where allowed), Cable Lock, USGI Manual, and F.E.T.
UPPER RECEIVER
BCMGUNFIGHTER™ Mod 4 Charging Handle

PRI Gen III 12" Carbon Fiber Handguard (Black)

PRI Folding Front Sight Base

Receivers Machined from Aluminum Forgings 7075-T6

Receivers Hardcoat Anodize per MIL-A-8625F, Type III, Class 2

T-Marked Upper Receiver

M4 Feed Ramp Flat Top Receiver

GAS SYSTEM
Rifle Length Gas System

MUZZLE OPTIONS
A2 Flash Hider

KAC QD Comp for NT4

PWS FSC556 Tactical Compensator

Vltor Compensator VC-1

Ops Inc 12th Model Brake & Collar

LOWER RECEIVER
Receivers Machined from Aluminum Forgings 7075-T6

Receivers Hardcoat Anodize per MIL-A-8625F, Type III, Class 2

Low Shelf for RDIAS Installation - Installation of a registered drop-in auto sear allows weapon to fire on full automatic

Low Shelf for Accuwedge Use - Accuwedge Stabilizes fit between upper/lower receiver

Un-notched Hammer Compatible with 9mm Use

Fire Controls Marked SAFE and SEMI

Magpul MOE Enhanced Trigger Guard

BCM® Milspec 7075-T6 Receiver Extension

A2 Fixed Stock

USGI H Buffer (1 USGI Tungsten, 2 Steel)

BARREL
410 Stainless Steel

18" MK12 Profile Barrel

1/8 Twist Rate

IonBond Black Coating

Button Rifled

Hand Lapped Bore

Hand Lapped Chamber

M4 Feed Ramp Barrel Extension

5.56 NATO Chamber

UPPER RECEIVER
BOLT
Bolt Machined from Mil-Spec Carpenter No. 158® Steel

HPT Bolt (High Pressure Tested/ Proof)

MPI Bolt (Magnetic Particle Inspected)

Shot Peened Bolt

Tool Steel Extractor

CARRIER
Chrome Lined Carrier (AUTO)

Chrome Lined Gas Key

Gas Key Hardened to USGI Specifications

Grade 8 Hardened Fasteners Key

Staked Per Mil-Spec

Black Extractor Insert

BCM® Extractor Spring