Toolcraft Nickel Boron BCG 450 Bushmaster

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Your 450 Bushmaster build deserves the best bolt carrier group money can buy. This 450 Bushmaster Nickel Boron BCG by Toolcraft is the highest quality BCG on the market today. 

Nickel Boron is an extremely durable finish with self-lubricating properties so your AR15 cycles smoother and requires less lubrication. Toolcraft has the Nickel Boron finish applied by UCT Coatings of Palm City FL, the same company that applies it for Fail Zero BCGs. Called EXO Technology, this is a patented process that applies a Nickel Boron finish so durable that it is specified on Army 81mm and 60mm mortar tubes, Blackhawk helicopter hoists, and for hard use applications on some Navy ships!  IMO, this may be the ultimate upgrade to the All-American AR-15. And it looks good too! 

See our interactive 360-degree views of all Toolcraft BCGs here - Toolcraft Gallery

Reviews: This product has been overwhelmingly liked by our customers! Look through the reviews to see what other shooters are saying about this Toolcraft Nickel Boron BCG.

Our own review can be seen here: Toolcraft Nickel Boron BCG Review

Questions? See Toolcraft FAQs.

See our blog article Top 3 Reasons You Might Want a Nickel Boron BCG

Note: Some dealers are selling Toolcraft BCGs that have been finished after leaving Toolcraft. The finish on those BCGs would not be warrantied by Toolcraft. All Toolcraft bolt carrier groups sold by SpiceTac include the 100% no-questions-asked Toolcraft warranty.

Customer Photos

Below: Toolcraft Nickel Boron (NiB BCG) installed in a partially completed pink themed AR15. The unique Nickel finish is well suited to spiffing up a build.

Below: Cat Approved! Expect great things when you combine the best Nickel Boron BCG (Toolcraft) on the market with the best upper and lower receivers (Aero Precision) on the market. 

Below: Complete Nickel Boron bolt carrier group as they come from Toolcraft, fully assembled and ready to drop in.

Below: Disassembled bolt carrier group showing all parts including firing pin, assembled bolt, firing pin retaining pin, cam pin and carrier with gas key.

Below: Detailed shot of Toolcraft gas key screw staking.

Below: Nickel BCG installed in this AR15 upper receiver shows silvery contrast against the dark black finish.