Toolcraft 300 BLK Bolt Carrier Group - Titanium Nitride

Toolcraft 300 BLK Bolt Carrier Group – Titanium Nitride

The Toolcraft 300 BLK Bolt Carrier Group with Titanium Nitride (TiN) finish is a premium upgrade for AR-style platforms chambered in .300 AAC Blackout. Constructed to full-auto M16 BCG specifications using U.S.-sourced 8620 steel for the carrier, this assembly is designed to increase durability, reliability, and ease of maintenance. The aerospace-grade TiN coating delivers unmatched hardness, corrosion resistance, and cleaning convenience compared to traditional finishes—ideal for shooters seeking both form and function.

Each component is built to include Toolcraft’s hallmark quality. The gas key is precision-machined from 4130 steel and firmly staked with Grade 8 screws to ensure proper gas sealing. Internal parts include a bolt made from MPI-inspected 9310 steel featuring a shot-peened extractor, three mil-spec gas rings, a 416 stainless steel firing pin, and an 8620 steel cam pin—all materials selected for military-spec performance and longevity.

The TiN finish bonds to the steel surface, resulting in a film that won’t flake or peel under stress and significantly reduces friction during cycling. Users report easier cleaning, improved component durability, and consistent operation in harsh conditions. This coating also retains finish quality and edge resistance through frequent use, outlasting older phosphate or nitride surface treatments.

Toolcraft BCGs are trusted by military OEMs and top-tier firearms manufacturers. Arm or Ally, as an authorized stocking dealer, ensures every TiN-coated Toolcraft BCG qualifies for the manufacturer’s no-questions-asked lifetime warranty. Beware of third-party coatings—Toolcraft warranty coverage is voided unless you purchase through authorized channels.

Whether you’re building a subsonic or supersonic .300 Blackout rifle, this Toolcraft TiN Bolt Carrier Group offers unmatched performance and aesthetic appeal. With U.S.-made quality, military-grade materials, and lifetime assurance, it’s a smart choice for any shooter seeking the best in function and finish.