Welcome to AT3’s AR15 Build Tool
- Ready to build your own AR15? You’ve come to the right place! Use our Custom AR15 Build Tool to research and pick from hundreds of components to make your own AR15 rifle or pistol in millions of different configurations.
- Not sure where to start? Check out our recommended builds for inspiration. Our AR Techs are also available to help you get started with the tool.
- Worried about compatibility?Don’t be! After you choose your components and place your order, one of our AR Techs will carefully review your selections and alert you to any potential compatibility issues.
- Not ready to start your build yet? Check out our AR Academy Blog. You’ll find tons of information ranging from how-to guides, product reviews and round ups, and technical articles.
Important Notes to Consider
- Check your Local Laws and Restrictions Not all states and municipalities have the same laws when it comes to guns. We encourage you to check your local laws and restrictions before completing your order.
- Building an AR15 Pistol or Rifle? AT3 Tactical specializes in AR15 Rifles and pistols. If you want to build an AR15 pistol, you’ll need to choose a sabilizing brace instead of a standard AR15 rifle stock.An AR15 pistol also has certain restrictions around forward grips.
Please review your local restrictions. - Choose the Color of your Build AT3 has many different colored parts for your AR15 build. The most popular colors (besides black) are Flat Dark Earth (FDE), OD Green, “Stealth” Grey, Red, Blue, and Pink. Consider a two-tone look as well – black parts with some colored options.
- Do you need a Lower? The lower on an AR15 is the item on your build that is regulated by the ATF. If you buy a lower, your entire order will need to ship to a FFL dealer of your choice and you will need to complete a background check at the dealer in order to take possession of your order.