KAK Industry K-SPEC Enhanced Bolt Carrier Group for AR-15 5.56/300 Blackout – C158 Bolt, Phosphate (425-3312-001)

• Enhanced AR15 bolt carrier group for 556 and 300 Blackout applications
• C158 steel bolt with dual ejector configuration for improved extraction reliability
• Chrome lined carrier interior combined with phosphate exterior for durability
• Downward gas ports reduce shooter exposure to excess gas during operation
• Slotted angled carrier rails support reliable cycling in harsh conditions
• Full auto profile carrier ensures compatibility with standard AR15 rifle systems

The KAK Industry K-SPEC Enhanced Bolt Carrier Group 556/300 Blackout C158 is a bolt carrier group designed for use in AR-15 rifles chambered in 5.56 NATO and 300 Blackout. This bolt carrier group features a C158 steel bolt and a chrome lined interior with a phosphate finish. It is used as a complete cycling component in direct impingement systems.

The KAK Industry K-SPEC Enhanced Bolt Carrier Group 556/300 Blackout C158 includes a dual ejector configuration and downward gas ports for controlled gas flow. This model features slotted angled carrier rail cuts and a full auto profile carrier for AR-15 compatibility. It is finished in black phosphate and supports standard AR-15 interface requirements. In practical use, this bolt carrier group is used for range use and integration into AR-15 platforms requiring a complete bolt carrier group with C158 bolt construction.