AR-15 Lower Receivers

The AR-15 lower receiver is a key portion of your build. It’s the one part of the AR-15 that is serialized and considered a “firearm”, and its sale is regulated by the ATF.  AT3 strives to make the process as simple as possible to help you shop for the lower you want, with prompt shipment to your FFL of choice.  Just make sure to brush up on your local regulations before making an order! READ MORE


Other Firearms:

ar-15 lower receiver - at3 tacticalAR-15 Lower Receivers
Glock G19X GNS Gen5 Pistol FDE - 9mm/19 Round PX1950703Handguns
Diamondback AR-15 Rifle - .223 Rem 5.56 NATO - 15 inch MLOK Rail - 30 roundRifles