KAK Industry AR-15 K-SPEC Enhanced 5.56 / .300 BLK Sand Cutter Down Vent Bolt Carrier Group

Precision-engineered for peak performance in 5.56 NATO and .300 BLK platforms, the KAK Industry AR-15 K-SPEC Enhanced 5.56 / .300 BLK Sand Cutter Down Vent Bolt Carrier Group (BCG) is a high-performance AR-15 upgrade designed for duty, defense, and high-volume shooting. This full-auto-rated BCG is ideal for use with suppressed or unsuppressed firearms and features angled carrier rail cuts for flawless function in adverse conditions and prolonged suppressed use. Downward gas ports help reduce gas blowback to the shooter while dual ejectors provide enhanced reliability. Unique slotted and angled rail cuts enhance functionality in adverse and rugged conditions, designed for debris dispersal, including suppressor fouling and foreign contaminants. Plus, Permatex is added between the gas key and carrier mating surface for a superior seal. This 5.56 / .300 Blackout BCG is crafted from 9310 steel (bolt) and 8620 steel (carrier), featuring a corrosion-resistant finish that enhances wear resistance, protects against corrosion, and ensures smooth cycling in your rifle setup. Even better, this KAK Industry BCG also features heat-treated 4140 steel (cam pin and extractor) as well as an additional Phosphate finish for lasting corrosion-resistance. If that’s not enough, the extractor pin and ejector are heat-treated S7 tool steel, while the gas key is heat-treated 4130 steel. Order today! Made in USA.