Toolcraft 450 Bushmaster Nickel Boron BCG


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Toolcraft 450 Bushmaster Nickel Boron BCG

Nickel Boron Coated and Warrantied for Life!

Toolcraft 450 Bushmaster Nickel Boron BCG is a Full-Auto M16 BCG, manufactured using a 9310 steel bolt, and 8620 steel carrier. The Nickel Boron coating is a favorite for individuals wanting an easier to clean bolt carrier group that has a natural lubricity.  The Bolt Carrier Group is the heart of your rifle, and if you want to upgrade the functionality and appearance of your rifle, this is a great way to do it! If you’re after the newest high-performance BCG finish, ensure you take a look at the DLC Coated BCG’s.

Arm or Ally is the internets largest authorized stocking dealer of Toolcraft products. If you want the best looking and performing Bolt Carrier Group available today, choose Toolcraft. Toolcraft is a major OEM Manufacturer for the U.S. Military and several other rifle manufacturers. Forget the fancy logo at a $75 premium; Have confidence the heart of your AR Rifle is 100% made in the USA, and Toolcraft has you protected with a no-questions-asked Lifetime Warranty.

Be sure to see all of our other growing selection of core AR parts to include bolt carrier groups, barrels, triggers and many other AR15 and AR10 parts.

Please Note: Some dealers utilize a third party coating service to keep their costs down. If purchasing a Toolcraft bolt carrier group from one of these dealers, Toolcraft will void the coating warranty. All Toolcraft Bolt Carrier Groups sold by Arm or Ally include the manufacturers 100% no-questions-asked warranty.

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Lifetime Warranty & Made in the U.S.A

Product Specifications


Manufacturer: Toolcraft
Material: 8620 Steel
Type: M16 Full Auto
Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
Coating: Nickel Boron (NiB)


Caliber: 450 Bushmaster
Bolt Material: 9310 Steel | Shot Peened
Extractor Material: 4140 Steel
O-Ring: Mil-Spec
Gas Rings: Mil-Spec (3)
Cam Pin Material: 8620 Steel
Firing Pin Material: 416 Stainless Steel
Other: MPI Inspected
MSRP: $189.99


Weight 12 oz
Dimensions 8.5 × 1.5 × 1.5 in
Part Type

Bolt Carrier Group, Upper Receiver Parts





Coating Type

Nickel Boron


450 Bushmaster

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