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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 Pistol 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 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
9" BCM® Enhanced Profile Barrel 1/7 Twist, M4 Feed Ramp Extension Chrome Lined Bore and Chamber |