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AT3™ AR-15 2-Stage Lower Parts Kit with Nickel Boron Trigger and Magpul MOE Grip

Based on 6 reviews

Orders will Ship within 1 Business Day

Backed by the AT3 Lifetime Warranty!

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Start your new build the right way – with the best from AT3 and Magpul

This high quality lower parts kit features all American-made parts from AT3 Tactical including a 2-Stage Nickel Boron Trigger, Magpul MOE Pistol Grip, and an optional Magpul Trigger guard. Choose the color you want, whether you want a curved or flat trigger, and you’ll be ready to roll.

End the cycle of countless upgrades to your lower – everything you need for fast, accurate, and ergonomic shooting is right here. At the heart of this kit is AT3 Tactical’s 2-Stage Nickel Boron Trigger, with a total pull weight of only 4.5 pounds. Add to that the quality components you can expect from AT3 and Magpul, and you’re left with an unbeatable value for top quality performance.

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

This Kit Includes:

Magpul MOE Grip (With Grip Screw)
AT3 Billet Trigger Guard
2-Stage Nickel Boron Hammer
2-Stage Nickel Boron Trigger
2-Stage Disconnector
Hammer Spring
Trigger Spring
2-Stage Disconnector Spring
Hammer Pin
Trigger Pin
Bolt catch
Bolt catch plunger
Bolt catch roll pin
Bolt catch spring
Buffer retainer
Buffer retainer spring
Magazine catch
Magazine catch button
Magazine catch spring
Pivot pin
Pivot pin detent
Pivot pin detent spring
Selector
Selector detent
Selector detent spring
Takedown pin
Takedown pin detent
Takedown pin detent spring
Detailed parts diagram included for quick and easy part identification

About The 2-Stage Trigger

AT3 has these 4.5 lb 2-Stage triggers made by Schmid Tool Schmid Tool is best known as the premier manufacturer of mil-spec AR-15 fire control groups. From government contracts to the biggest rifle manufacturers – Schmid Tool triggers have been trusted in millions of weapons over their 60 years in business.

Our goal in this partnership is to bring our customers world-class engineering and manufacturing, with factory-direct pricing. For the finest quality triggers you can stake your life on, without the “big brand” price tag.

Products available on this page:

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.

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

This includes AT3 Red Dot Sights, Handguards, Iron 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.

4.3 6 reviews