BCM MK12-FDE (pre owned)

UPPER RECEIVER
Receiver Machined from Aluminum Forgings 7075-T6 and Hardcoat Anodized per MIL-A-8625F, Type III, Class 2M4 Feed Ramp Flat Top with Laser T-markings

Rifle Length Gas System

BCM BOLT CARRIER GROUP
Machined from MIL-SPEC Carpenter No. 158 SteelHPT/MPI (High Pressure Tested/Proof) · (Magnetic Particle Inspected)

Shot Peened

Tool Steel Extractor w/ BCM Extractor Spring

Black Extractor Insert

Chrome Lined Carrier (Full Auto Profile)

Chrome Lined Gas Key Hardened to USGI Specifications, w/ Staked Grade 8 Fasteners per MIL-SPEC

BCM LOWER RECEIVER
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

Low Shelf for Accuwedge use

Un-notched hammer compatible with 9mm Use

Fire Controls Marked SAFE and SEMI

Staked M4 Lock Nut

BCM Intermediate 7075-T6 Receiver Extension and Vltor A5 Buffer

USGI H Buffer (1 USGI Tungsten, 2 Steel)

BCM BARREL
Independently Certified MIL-SPEC 11595E Barrel Steel, Manganese Phosphate Barrel Finish on Entire Barrel18" 410 Stainless Steel Mk12 Contour Barrel 1/8 Twist, M4 Feed Ramp Extension

Stainless Steel Bore and Chamber

HPT/MPI(High Pressure Test) (Magnetic Particle Inspected), per MIL-SPEC