Toolcraft AR10 308 Bolt Carrier Group Black Nitride


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

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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 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. **

Carrier Specifications

Manufacturer: Toolcraft
Material: 8620 Steel
Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
Finish: Black Nitride
Forward Assist Serrations: Yes
Compatibility: DPMS

Bolt Specifications

Caliber: 308 Winchester Family
Bolt Material: 9310 Steel
Extractor Material: Steel
Mil-Spec O-Ring
Mil-Spec Gas Rings (3)
Cam Pin Material: 4140 Steel
Firing Pin Material: 8740 Stainless Steel
Other: MPI Inspected; DPMS Compatible

MSRP: $219.99

[/vc_column_text][porto_block name=”product-arm-or-ally”][vc_separator][vc_column_text]Arm or Ally is a stocking dealer for all Faxon Firearms, Ballistic Advantage, Rosco Manufacturing, Aero Precision, Toolcraft, Elftmann Tactical, HIPERFIRE and more. See our growing inventory of AR Parts and Reloading Components.[/vc_column_text][/vc_column][/vc_row]


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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