AT3 Tactical 2 Stage Trigger Assembly for AR 15 – 4.5 lb Pull Weight

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AT3 Tactical FU-BAG Lost Parts Kit - Because Oops Happens

AT3™ FU-BAG™ AR-15 Lost Parts Kit – Springs, Detents, Replacement Components


AT3 Tactical FU-BAG Lost Parts Kit - Because Oops Happens

AT3™ FU-BAG™ AR-15 Lost Parts Kit – Springs, Detents, Replacement Components

The Best Upgrade To Your AR-15 – Your Key To Faster And More Accurate Shooting!

The AT3 2-Stage Trigger drops into your mil-spec lower for a huge upgrade to your accuracy and speed on the trigger press. With a 4.5 lb total pull weight and a durable Nickel Boron finish, this trigger ensures a smooth pull and crisp break every time you squeeze the trigger.

The two stages of this trigger consist of an initial 2 lb pull that brings you to a “wall”, where the hammer and trigger are set to break for the shot. After that, it’s only a 2.5 lb pull to fire, helping you to make accurate shots with short reset in between.

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

Easy to Install

  • Quick and easy installation – can typically be done in 10 minutes using our detailed instructions. No special tools required.
  • Works in standard AR-15 lowers, as well as AR-10 lowers like the Aero M5.

Parts Included:

  • 2-Stage Nickel Boron Trigger
  • 2-Stage Nickel Boron Hammer
  • 2-Stage Disconnector
  • Trigger spring
  • Trigger pin
  • Hammer pin
  • Hammer spring
  • Disconnector 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.

Customer Reviews

Based on 113 reviews
Cole W
Ghost that trigger

Since installing this trigger I now understand why Garand Thumb loves to “ghost that trigger.” Since installing it I will randomly pull it out of the safe just to pull the trigger. Couldn’t be happier.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Brian Boylan
Nice Budge Friendly Trigger

I give it 3 stars for now for the reason that my build is not complete yet and have not fired any rounds yet. The the dry fire does feel good after testing it during the install. I was a little disappointed at the nickel boron finish. Definitely looked more polish on the web site. Overall for a budge build at its price it has fulfilled all my needs. We will see if I can up it to 4 stars once I get a few rounds out, and really break it in.

Bobby Hewitt
2 stage trigger from at3

It's a good trigger for the money. Break is great and reset is nice. Would recommend. I buy lots of parts from at3. Always has great service and parts.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Anthony C.
Great product!

I placed my order and it shipped the same day which is unheard of these days. 4 days later it was in my hands. I installed it immediately in my lower. It fit perfectly and the finish is great. Although my build isn't complete but, doing some dry fires with it I'm already pleased. Nice and crisp feel, little creep and reset is firm and crisp. Once I have fired a few rounds, I'll do a follow up review but as it stands I'm very happy with my trigger and AT3!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

KISS and it will work magic.

I think with all the parts out there people tend to get jaded and think the higher price for A component or from a specific brand it justifies splurging large amounts of dollars on said components. Learned long time ago that you are the main component to anything you use and only your skill level and practice can determine how said component behaves and the results it produce. With that said this trigger kit shows that high price mean blaaaahhhh, it does the job and does it well. I also got the single stage trigger kit and compared them both, with the 2 stage you definitely get that more control pull if your trying to be very precise and controlled. I completed two builds both have the 2 stage kit .223 wylde and .308. I think the more I shot the crisper it will become once they are broken in a bit. Don’t hesitate on buying this kit, well worth it!!!