Product information “BCM CQB11 QRF10 Carbine 5.56mm Nato 11.5″” Exact construction and rigorous durability are the standard for every weapon system that comes off our line. BCM® Professional Grade Weaponry® are hard use tools, built to perform in combat where failing performance is the only standard for men and machines. PROFESSIONAL GRADE – LIFE SAVING TOOLS SPECIFICATIONS BCM® 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 Carbine 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 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 11.5″ 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), via MIL-SPEC Complete BCM® Rifles and Carbines include: Rifle, 1 Magazine, Cable Lock, USGI Manual, and FET Total Length: 704 – 790mm
