Toolcraft AR10 308 Bolt Carrier Group Black Nitride


AR10 / .308 BCG, Black Nitride Finish, Forward Assist Serrations, DPMS Compatible

Availability: In stock

SKU: TC308BCGBN Categories: , , Tags: , ,


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 are proud to feature Toolcraft products along with our already fantastic line-up of reputable manufacturers.

We also offer a Toolcraft 308 Double Ejector BCG for the ultimate in 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
Manufacturer Toolcraft Inc.
100% American Made Yes
Caliber 308 Winchester Family
Finish Black Nitride
Platform AR10
Compatability DPMS Compatible
Bolt Specs
Material 9310 Steel
Extractor 4140 Billet Steel, O-Ring
Cam Pin 4140 Steel
Firing Pin 8740 Stainless Steel
Finish Black Nitride+
Other MPI, Shot Peened, Heat Treated
Carrier Specs
Material 8620 Steel
Gas Key 4130 Billet Steel; Grade 8 Fasteners
Finish Precision Ground; Black Nitride+
Other Heat Treated, Forward Serrations

Arm or Ally is a stocking dealer for all Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, CMC Triggers, HIPERFIRE and named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!  See our growing inventory of AR Parts, and Reloading Components.

Weight 18 oz
Dimensions 9 × 2 × 2 in

308 Win



Part Type

Bolt Carrier Group, Upper Receiver Parts



Coating Type

Black Nitride

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