Toolcraft 7.62x39 Bolt Carrier Group - Nickel Boron

Toolcraft 7.62×39 Bolt Carrier Group – Nickel Boron

The Toolcraft 7.62×39 Bolt Carrier Group – Nickel Boron is a premium full-auto M16 BCG engineered specifically for AR-platform rifles chambered in 7.62x39mm. Manufactured in the U.S.A. using 9310 steel for the bolt and 8620 steel for the carrier, this BCG is built for exceptional strength, reliability, and performance under pressure. It offers enhanced function and aesthetics with a Nickel Boron (NiB) finish, which significantly increases lubricity, wear resistance, and corrosion protection.

This BCG features a bolt face depth of .125″, precisely machined to accommodate the 7.62x39mm cartridge reliably. The bolt includes a machined D2 tool steel extractor, a Mil-Spec O-ring, and triple gas rings to ensure consistent cycling and extraction. The bolt is also shot peened and magnetic particle inspected (MPI) to confirm structural integrity and ensure it performs to the highest standards in high-round-count environments.

The Nickel Boron finish on both the bolt and carrier enhances durability and simplifies maintenance by allowing carbon fouling to wipe away effortlessly. The gas key is secured with Grade 8 fasteners and properly staked for dependable long-term function. The cam pin is constructed from 8620 steel, while the firing pin is made from 416 stainless steel for excellent corrosion resistance and durability under high-temperature operation.

This Toolcraft 7.62×39 BCG is manufactured to M16 full-auto specifications, making it suitable for use in a variety of AR builds and increasing mass for improved cycling and reliability, especially in blowback or direct impingement systems. Whether you’re building a robust rifle for hunting, range use, or defensive applications, the Toolcraft 7.62×39 Bolt Carrier Group offers the quality and longevity expected from a trusted OEM military contractor.

All Toolcraft Bolt Carrier Groups sold by Arm or Ally are fully coated and assembled by Toolcraft and backed by their no-questions-asked lifetime warranty. Products coated by third-party vendors do not carry Toolcraft’s factory warranty. Choose Arm or Ally—the internet’s largest authorized dealer of Toolcraft components—for unmatched quality and service.