AT3 Tactical™ 9mm Bolt Carrier Group – Nitride


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ETS 40rd 9MM Glock Magazine

ETS 40rd 9MM Glock Magazine


High-Quality Black Nitride Bolt Carrier Group For Your 9mm Build

This AT3 Tactical™ 9mm Bolt Carrier Group features meticulous machining and a high-quality finish for a lifetime of use. This bolt makes a great partner for any Glock or Colt-compatible AR-15 blowback barrel, so you can make a completely custom build to suit your needs.

The black nitride finish features excellent hardness and lubricity, which means this BCG is durable, easy to clean, and less reliant on lubrication.  It weighs in at 14.6 ounces total, and has a removable rear weight for compatibility with JP and Armaspec recoil springs.

MPI Inspected With Enhanced Geometry

The AT3 Tactical™ 9mm Bolt Carrier Group receives magnetic particle inspection (MPI), and includes properly staked grade-8 gas key screws. With its enhanced geometry, this BCG shares compatibility with Glock, Colt, and Endomag extractors.  Whether you’re running a proprietary lower or an adapter with those styles, this BCG will work for you.

This high-quality BCG will ensure a reliable rifle function and is guaranteed to last a lifetime. Made in the USA!


  • Material: Heat-treated 8620 Steel
  • Caliber: 9mm
  • Finish: H&M Black Nitride finish
  • Accepts a standard 5.56 AR15 extractor
  • Firing pin: Spring-loaded 17-4 stainless steel pin
  • Fit: Colt magazines, Glock magazines, EndoMag
  • Weight: 14.6 oz (with removable rear weight)
  • 100% USA Made

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.