BCM Rifle Company.
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BCM® M4 Mod 2.
BCM® M4 Mod 2 Specification.
Complete BCM® Rifles and Carbines include: Rifle, 1 Magazine (where allowed), Cable Lock, USGI Manual, and F.E.T.
BCM M4 Mod 2. BCM Upgrades. Mod 4 Charging Handle. Mod 3 Pistol Grip QD End Plate. Mod 0 Buttstock. Trigger Guard.
Receiver Machined from Aluminum Forgings 7075-T6 and Hardcoat Anodized per MIL-A-8625F, Type III, Class 2

M4 Feed Ramp Flat Top with Laser T-markings

Standard Carbine Gas System

Tactical Aluminum Picatinny Handguard

Machined from Milspec Carpenter No. 158® Steel

HPT/MPI (High Pressure Tested/Proof) · (Magnetic Particle Inspected)

Shot Peened

Tool Steel Extractor w/ BCM® Extractor Spring

Chrome Lined Carrier (Full Auto Profile)

Hardened, Chrome Lined Gas Key w/Staked Grade 8 Fasteners per Milspec

Receiver Machined from Aluminum Forgings 7075-T6, Hardcoat Anodized (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

Fire Controls Marked SAFE and SEMI

BCM® Milspec 7075-T6 Receiver Extension

Staked M4 Lock Nut

USGI H Buffer (1 USGI Tungsten, 2 Steel)

Independently Certified Milspec 11595E Barrel Steel, Manganese Phosphate Barrel Finish on Entire Barrel

16" Standard Government Profile Barrel 1/7 Twist, M4 Feed Ramp Extension

USGI 5.56mm NATO Chrome Lined Bore and Chamber

HPT/MPI(High Pressure Test) (Magnetic Particle Inspected), per Milspec

Mil-Spec F-Marked Forged Front Sight

Standard Milspec A2 Flash hider