KAK Industry K-SPEC Enhanced M16 5.56 NATO/300 Blackout BCG - PVD Flat Dark Earth, Dual Ejector

The KAK Industry K-SPEC Enhanced Bolt Carrier Group is a duty-grade M16-profile BCG engineered for the AR-15 platform. Designed to run reliably across both 5.56 NATO and .300 Blackout loads, it pairs a 9310 steel bolt with a PVD (Physical Vapor Deposition) Flat Dark Earth finish for long-lasting corrosion resistance and a distinctive hard-coated appearance.

The K-SPEC Enhanced design adds functional upgrades over a standard carrier: dual ejectors deliver more consistent ejection across a wider range of loads, barrel lengths, and gas-port setups, while the down vent configuration redirects gas away from the shooter. The M16-profile carrier ensures broad compatibility with standard AR-15 upper receivers and complete bolt carrier group assemblies.

Whether you are building a new 5.56 carbine, assembling a .300 Blackout SBR, or upgrading an existing rifle, this K-SPEC Enhanced BCG delivers the cycling reliability and durability KAK Industry is known for.