Toolcraft 458 SOCOM Bolt Carrier Group - Black Nitride


Original price was: $199.99.Current price is: $75.17.

In Stock

In stock


Toolcraft 458 SOCOM Bolt Carrier Group

Lifetime Warranty & Made in the U.S.A

Toolcraft 458 SOCOM Bolt Carrier Group is a Full Auto BCG, manufactured using a 9310 steel bolt and an 8620 steel carrier. Together they make up one of the most popular and well-built bolt carrier groups on the market.

What’s more, Arm or Ally is proud to add Toolcraft products to our fantastic lineup of reputable manufacturers. Because of this, we can provide our customers with the best available AR parts at affordable prices.

Toolcraft is a major OEM manufacturer for the U.S. Military and many other rifle manufacturers. Forget the fancy logo at a $75 premium, and have confidence it’s 100% made in the USA, North Carolina. If ever a problem, simply call Toolcraft, and they will take excellent care of you with their no questions asked Lifetime Warranty.

Lifetime Warranty – Toolcraft BCG carry a lifetime, no questions asked, warranty. Simply put… Should any Toolcraft product fail, return it to them for a brand new replacement.

Carrier Specifications

  • Material: 8620 Steel
  • Type: M16 Full Auto (Preferred for most AR-15 builds)
  • Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws
  • Coating: Black Nitride

Bolt Specifications

  • Bolt Material: 9310 Steel | Shot Peened
  • Extractor Material: 4140 Steel
  • Caliber: 458 SOCOM
  • Mil-Spec O-Ring Mil-Spec Gas Rings (3)
  • Cam Pin Material: 8620 Steel
  • Firing Pin Material: 416 Stainless Steel
  • Other: MPI Inspected

Please Note: Some dealers utilize a third-party coating service to reduce costs. If purchasing a Toolcraft bolt carrier group from one of these dealers, Toolcraft will void the coating warranty. All Toolcraft Bolt Carrier Groups sold by Arm or Ally are manufactured and plated / coated by Toolcraft and include a 100% no-questions-asked warranty.

Product Information







Carrier Material

8620 Steel

Bolt Material

9310 Steel


QPQ Nitride




Standard AR15 components


MPI Inspected, Shot Peened, FA Serrations

Made in USA




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 was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!

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