KAK Industry K-SPEC Enhanced AR-15 Bolt 5.56 NATO/.300 Blackout Chrome - Dual Ejector

The KAK Industry K-SPEC Enhanced AR-15 Bolt is a complete drop-in bolt assembly engineered to feed and extract reliably across both 5.56 NATO and .300 Blackout in standard AR-15/M16-pattern uppers. It is machined from 9310 steel, shot peened for fatigue resistance, and ground to tight outside-diameter tolerances for consistent lock-up.

A hard chrome finish protects the bolt body from carbon fouling and corrosion while keeping routine cleaning simple. The K-SPEC Enhanced design adds a dual ejector for positive case ejection across the wide pressure range between 5.56 and supersonic .300 Blackout loads. This listing is for the complete bolt assembly only - designed to drop directly into your existing bolt carrier - making it a straightforward replacement or upgrade for AR-15 builds and ongoing platform maintenance.