Toolcraft AR10 308 Bolt Carrier Group Black Nitride


In stock

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Toolcraft AR10 308 Bolt Carrier Group

Made in the U.S.A – Lifetime Warranty

The Toolcraft AR10 308 Bolt Carrier Group in black nitride is manufactured using a 9310 steel bolt and an 8620 steel carrier. Compatible with most calibers in the 308 parent cartridge family. If building a 6.5 Creedmoor, we recommend the Toolcraft 6.5 Creedmoor Bolt Carrier Group as it is compatible with the high-pressure 6.5 Creedmoor Cartridge.

Toolcraft is an OEM for the U.S. military and many other large rifle manufacturers, producing the most popular and well-built AR10 bolt carrier group on the market. Forget the fancy logo at a $75 premium, and buy directly from Arm or Ally, the internet’s largest dealer of Toolcraft products. All of our Toolcraft Bolt Carrier Groups come with a 100% hassle-free Lifetime Warranty – should any Toolcraft product fail, contact us for replacement. We proudly feature Toolcraft products and our fantastic line-up of reputable manufacturers.

We also offer a Toolcraft 308 Double Ejector BCG for ultimate reliability. The 308 dual ejector BCG features a 0.065″ reduced diameter firing pin and firing pin channel. Historically, the large format AR10 variants are known to have ejection problems. The addition of the second ejector ensures consistent ejection and greatly improves the reliability of your AR10 rifle.

** Double ejector model is available HERE. **

Product Information



Part Type

Bolt Carrier Group, Upper Receiver Parts

Made in USA




Coating Type

Black Nitride


260 Rem, 308 Win, 6.5 Creedmoor

Bolt Material

9310 Steel

Carrier Material

8620 Steel


Forward Assist Serrations


Standard DPMS AR10 Components

Arm or Ally

Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!

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