Aero Precision manufacturers mil-spec parts, including AR15 & AR10 uppers, lowers, rifles, handguards, barrels, scope mounts & more.

Shop AR15 Complete Upper Receivers for your custom AR15 build. Mil-spec parts - American Made.

Build an AR15 that embodies precision and reliability. From upper and lower receivers, to barrels, handguards, tools and more - find everything you need for a complete assembly.

Finish your AR15 build with one of our Upper Receiver options, from DIY to complete pre-built or matched receivers sets.

Find all the parts, general build instructions & details on Aero Precision's Milspec AR15 line of rifle parts & accessories.

With Aero Precision, you can rely on our precision and superior engineering to meet your needs. Our warranty provides unwavering support for our products and continues for the life cycle of …

Building a custom AR15? Choose from Aero Precision's selection of Stripped & Complete Lower Receivers, made with quality you can count on.

Save up to 50% on discounted AR15 & AR10 uppers, lowers, rifles, parts, accessories & more. Grab them while supplies last!

Shop AR15 Complete Lower Receivers and other AR15 parts for your next rifle build online at aeroprecisionusa.com

Aero Precision is your resource for building a high quality M5, AR10 & AR308 rifles. Find Lowers, Upper Receivers, Handguards, parts & more.