AR-10 Carbine Buffer and Spring.
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Features: 4150 Certified Gun Barrel Quality Steel, Barrel Type: Button Rifled, Caliber: 300BLK, Twist: 1:8, Inside Finish: QPQ Nitride, Outside Finish: QPQ Nitride, Muzzle Thread: 5/8-24 TPI, Gas Block Diameter: .750″. Available in 10.5″ with pistol length gas system and 16″ with carbine length gas system.
Standard Super Gas Block – The bore of the SGB is machined to closely fit around .750” diameter mounting bosses found on most M4 Carbines and AR-15 rifles.
Mil-Spec but so much more, the Gorilla Firearms Bolt Carrier Group is made with quality components and built to exacting standards. Bolt: 9310 Tool Steel Construction (Stronger than C158),Full MIL-SPEC Heat Treatment, Shot Peened to MIL-SPEC,Magnetic Particle Inspection (MPI),Back of Lugs Chamfered…
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