The Spike’s Tactical Lightweight M16 Bolt Carrier Group (brand part no. ST5BG05) pairs a reduced-mass carrier with a nickel boron coating, a combination built for shooters who want faster cycling and easier maintenance from their bolt carrier group. A BCG is one of the most critical parts of any AR-15 build, and Spike’s Tactical does not cut corners on this lightweight version just because the mass is reduced. The nickel boron coating resists fouling and wipes clean with far less effort than a standard phosphate finish, which means less time scrubbing carbon out of the carrier after a range day. It is a genuine Spike’s Tactical part, not an imitation stamped with the name.

Key Specifications

• Built as a lightweight M16-profile bolt carrier group for faster cycling.
• Finished with a nickel boron coating for smoother function and easier cleaning.
• Resists carbon fouling better than a standard phosphate-finished BCG.
• Manufactured directly by Spike’s Tactical, not a third-party imitation.

Frequently Asked Questions

What coating does this BCG use? A nickel boron coating.

Is this a lightweight or standard-mass carrier? Lightweight.

Does the nickel boron coating make cleaning easier? Yes, it resists fouling and wipes clean more easily than a phosphate finish.

Buy the Spike’s Tactical Lightweight M16 Bolt Carrier Group, Nickel Boron

Order this Spike’s Tactical BCG from Spike’s Tactical through our AR bolt carrier groups lineup. Our Lubbock, Texas team ships it direct and fully insured as soon as it’s ready to go.