Toolcraft AR15 Bolt Kit


Great for repair or caliber conversions


Toolcraft AR15 Bolt Kit

Available in several calibers.

Toolcraft AR15 Bolt kit includes all of the internals required to rebuild or convert your current bolt carrier group to a different caliber.  Manufactured and warrantied by Toolcraft, an industry leader in bolt carrier groups.  Toolcraft bolt kits are available in Black Nitride, and Diamond-Like Carbon (DLC) finishes for 5.56 NATO and most AR15 variant calibers.

Each AR15 Bolt Kit includes an assembled bolt, firing pin, cam pin, and retainer pin.

Lifetime Warranty & Made in the U.S.A

Product Specifications

Manufacturer: Toolcraft
Caliber:  Various
Bolt Material: 158 C | 9310 Steel
Extractor Material: 4140 Steel
Finish:  Black Nitride | DLC
O-Ring: Mil-Spec (3)
Cam Pin Material: 8620 Steel
Firing Pin Material: 416 Stainless Steel
Other: MPI Inspected | Shot Peened

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 5 oz
Dimensions 3 × 2 × 1 in
Coating Type

Black Nitride, Diamond-Like Carbon (DLC)





Part Type

Bolt Carrier Group, Upper Receiver Parts


300 Blackout, 350 Legend, 458 SOCOM, 5.56 NATO, 6.5 Grendel, 6.8 SPC, 7.62×39, 224 Valkyrie, 450 Bushmaster

Select Options

5.56 DLC – 9310, 5.56 DLC – 158, 6.5 Grendel DLC, 6.8 SPC / 224V DLC, 450 / 458 SOCOM DLC, 7.62×39 DLC, 5.56 Black Nitride – 9310, 5.56 Black Nitride – 158, 6.5 Grendel Black Nitride, 6.8 SPC / 224V Black Nitride, 450 / 458 SOCOM Black Nitride, 7.62×39 Black Nitride

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