Our carriers come with a variety of options and are all manufactured to customer print and specifications within our facility in Marion, North Carolina.
We manufacture over 9,000 carriers per week each available with Chrome/Phosphate, Nickel Boron or machined to satisfy all our customers.
Toolcraft has the ability to offer a wide variety of calibers and styles of BCG’s. If you prefer to apply a special coating, we can machine your order to the specifications that are required to allow for the coating buildup. If you decide to use this method, please let our knowledgeable customer service personnel know your intentions and we will machine it correctly to your application. We can also sell just the carrier or a carrier with the key properly assembled and staked.
Toolcraft Black Nitride AR15 Bolt Carrier Group is a M16 Full Auto BCG, manufactured using a 9310 steel bolt, and a 8620 steel carrier.
Material: 8620 Steel
Type: M16 Full Auto (Preferred for most AR-15 builds)
Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
Coating: Black Nitride
Bolt Material: 9310 Steel
Extractor Material: 4140 Steel
Mil-Spec Gas Rings (3)
Cam Pin Material: 8620 Steel
Firing Pin Material: 416 Stainless Steel
Other: MPI Inspected
*Manufacturers Description of Coating*
Black Nitride is a process commonly referred to as SBN (Salt bath nitride) and QPQ (quench polish quench). These are a form of nitrocarburizing or a Thermo Chemical treatment that improves wear resistance and corrosion resistance of ferrous metals with little or no dimensional change which causes the hardening of steel. The chemical bath results in a deep dark black with a harder, more durable finish.