UPPER RECEIVER

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

Mid Length Gas System

BCM® BOLT CARRIER GROUP

Machined from MIL-SPEC Carpenter No. 158® Steel

HPT/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

Fire Controls Marked SAFE and SEMI

BCM® Milspec 7075-T6 Receiver Extension

Staked M4 Lock Nut

USGI H Buffer (1 USGI Tungsten, 2 Steel)

BCM® Barrel

Independently Certified MIL-SPEC 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 MIL-SPEC