AT3™ GI Trigger Assembly – Mil-Spec AR-15 Fire Control Group


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A Reliable GI Trigger with Ground Engagement Surfaces for a Smoother Pull

When it comes to the classic AR-15 trigger you typically see in off-the-shelf rifles, they can leave a lot to be desired.  The AT3 GI trigger solves the biggest issue with why phosphated trigger groups suck: the sear engagement surfaces.  This trigger group is longitudinally-ground, resulting in hardened, somewhat polished surfaces on the trigger and hammer.  Without the phosphate coating in the way, these surfaces end up giving you a smoother trigger pull, with all the reliability you can expect from a mil-spec trigger.  Around a 6 pound pull weight, and strength to get reliable strikes on the primer every time.

American Made Quality

  • All parts meet or exceed military specifications (Mil-Spec)
  • Components are 100% Made in the USA
  • Quality packaging keeps components protected and organized
  • Backed by the AT3 Lifetime Warranty

Easy to Install

  • Quick and easy installation – can typically be done in 10 minutes using our detailed instructions. No special tools required.

Parts Included:

  • Stamped Disconnector
  • Disconnector spring
  • Phosphated and Precision-Ground Hammer
  • Hammer pin
  • Hammer spring
  • Phosphated and Precision-Ground Trigger
  • Trigger pin
  • Trigger spring

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.