KAK Industry Bolt Carrier Group for AR-15 5.56/300 Blackout – NP3 Finish, Gray (425-0506-001)

• Bolt carrier group designed for AR-15 rifles chambered in 5.56 and 300 Blackout
• Includes 9310 steel bolt for durability and consistent performance characteristics
• NP3 finish reduces friction and improves resistance to fouling buildup
• M16 auto profile carrier supports compatibility with standard AR-15 systems
• Includes NP3 coated cam pin and 4130 gas key for reliable operation
• Designed for improved longevity and easier maintenance during extended use

The KAK Industry Bolt Carrier Group 556/300 Blackout 9310 Bolt NP3 Finish Gray 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 9310 steel bolt with an NP3 finish and an M16 auto profile carrier.

The KAK Industry Bolt Carrier Group includes an NP3 coated cam pin and a 4130 steel gas key, providing defined material specifications for key components. The NP3 finish is applied through an electroless nickel plating process with a fluoropolymer component, offering a specific surface treatment type. This product is used for installing or replacing a complete bolt carrier group in compatible AR-15 platforms. In standard configurations, the M16 auto profile carrier supports operation in rifles configured for range use or routine shooting applications.