Kak Industry K-Spec Enhanced AR-15 BCG 5.56 NATO / 300 AAC Blackout Dual Ejector

Kak Industry K-Spec Enhanced Bolt Carrier Group (BCG)

Built for AR-15 reliability in both suppressed and unsuppressed use.

• Downward gas vents: Moves standard gas relief ports underneath the carrier into the magazine feed lip channels to reduce debris and gas vented toward the shooter.
• Additional emergency relief ports: Added to the bottom of the carrier to help mitigate structural damage in the event of a case head separation.
• Dual ejectors: Mil-spec ejectors and springs; no proprietary parts required. Dual ejector system improves ejection reliability and consistency.
• Angled carrier rail cuts: For reliable function in adverse conditions and prolonged suppressed use.
• M16 full auto profile
• Permatex added between gas key and carrier mating surface

Construction / materials (as stated)

• Carrier: 8620 steel; rails/bolt runs/gas bores ground to .0002 tolerances; chrome lined phosphate finish
• Bolt: 9310 steel; outside diameters ground to .0002 tolerances; MPI test; phosphate finish
• Firing pin: 8740 steel; Swiss turned, heat treated, precision ground, chrome plated
• Cam pin: 4140 steel; Swiss turned, heat treated; phosphate finish
• Extractor: 4140 steel; fully machined; phosphate finish
• Extractor pin: S7 tool steel; ground, heat treated
• Ejector: S7 tool steel; ground, heat treated
• Gas key: 4130 steel; heat treated; T25 torx fasteners; torqued/staked with hydraulic staking machine; chrome lined phosphate

Compatibility

• Model fit: AR-15
• Brands/uses: AR-Platform
• Calibers listed: 5.56mm NATO / 300 AAC Blackout