We Ship Fast!
Order by 1PM CST for Same Day Shipping (Mon-Fri)
AT3 Pistol Lower Build Kit – KAK Pistol Brace, Magpul Grip, AT3 Lower Parts Kit and Buffer Assembly
Lifetime WarrantyOn All AT3 Brand Products
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.
Fast & Free Shipping On orders over $50
You will receive fast, free shipping for all orders over $50
Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.
Most orders received by 1pm CST ship the same day
You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.
Finish Your New Pistol Lower the Right Way – In the Color You Want!
Have a vision for completing your next AR lower? Want to save a little cash without sacrificing visual flair or rock-solid function? Look no further than the AT3 Lower Build Kit for Pistol AR15s. This kit uses the tried-and-true KAK pistol brace, Magpul MOE Grip, and the AT3 Enhanced lower parts kit to give your next short-barrel build the quality it deserves, in any color we have available.
About the AT3 Tactical Enhanced Lower Parts Kit with Magpul MOE Grip and Trigger Guard
This kit is great for any AR builder who wants quality components without breaking the bank, with the ergonomics of Magpul’s pistol grip combined with our Nickel Teflon Trigger Assembly. The trigger has a smooth pull and clean break unlike a stock milspec trigger, and the MOE trigger guard allows more room for comfortable shooting with gloves.
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
About the KAK Pistol Brace and Buffer Tube Assembly
Made from high-strength glass-reinforced polymer, the Blade is manufactured to exacting tolerances and fits all pistols equipped with a standard AR-15 pistol buffer tube (up to 1.25″ in diameter). No special receiver extension needed. No half-hour installation process. Just slip it on and tighten the large set screw for a rock-solid installation.
This veteran-designed and U.S.A.-manufactured shooting aid improves your marksmanship by providing additional support of your pistol while you still hold and operate it with one hand. The Blade incorporates a vertical “fin,” which you stabilize against the inside of your forearm when in the firing position. Or, you can stabilize the Blade against your cheek for a perfect, steady sight picture.
– Fits all pistols equipped with a standard AR-15 pistol buffer tube (up to 1.25? in diameter)—AR pattern, Glock, CZ Scorpion Evo 3, HK9X pattern, etc.
– Quick and easy to install
– Provides additional support during firing
– Weighs a scant 5.0 ounces
– ATF approved for pistol use
– Veteran designed, engineered, marketed, and sold
– Made in U.S.A.
Complete Lower Build Kit Includes:
- Magpul MOE Grip (With Grip Screw)
- Nickel Teflon Hammer
- Nickel Teflon Trigger
- Enhanced Disconnector
- Hammer Spring
- Trigger Spring
- Hammer Pin
- Trigger Pin
- Disconnector Spring
- 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 detent
- Selector detent spring
- Takedown pin
- Takedown pin detent
- Takedown pin detent spring
- Trigger guard roll pin
- Detailed parts diagram included for quick and easy part identification
- Magpul MOE Trigger Guard
- Custom Buffer Tube
- Castle Nut
- End Plate
- Buffer Spring
- Carbine Buffer
- KAK Shockwave Pistol Brace