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  • Sale
    Forged AR15 80% Lower Fire/Safe Marked (1-pack) Forged AR15 80% Lower Fire/Safe Marked (1-pack) Forged AR15 80% Lower Fire/Safe Marked (1-pack)

    80% Lower Fire/Safe Marked (1-pack)

    (1) Black Fire/Safe Marked AR15 Forged 80% Lower Receiver: For AR-15 builds (5.56/.223/300 BLK/6.5 Grendel) Color: Anodized Black Type III Hard Anodized 100% Mil-Spec Quantity: 1 Fire/Safe Marked: Yes Forged 7075-T6 Aluminum Broached Magwell 100% Made...

    Was: $83.99
    Now: $69.99
  • Sale
    Premium 80% Lower Fire/Safe Marked Billet (1-pack) Premium 80% Lower Fire/Safe Marked Billet (1-pack) 2 Premium 80% Lower Fire/Safe Marked Billet (1-pack) 3 Premium 80% Lower Fire/Safe Marked Billet (1-pack) 4 Premium 80% Lower Fire/Safe Marked Billet (1-pack) 5

    Premium 80% Lower Fire/Safe Marked Billet (1-pack)

    The Premium 80% Lower Fire/Safe Marked Billet has been redesigned with you in mind. The Premium 80% Billet has been enhanced and now offers a threaded bolt catch release hole as well as a threaded rear takedown detent hole. These enhancements...

    Was: $119.99
    Now: $99.99
  • Sale
    80% Lower (1-pack) - Blemished

    80% Lower (1-pack) - Blemished

    (1) Blemished Black 80% Lower Receiver: This receiver is blemished. Marks will vary.  The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. This is a NON-REFUNDABLE product. These blems may or may not be...

    Was: $77.99
    Now: $64.99
  • 80% Lower Patriot Pack 80% Lower Patriot Pack 2 80% Lower Patriot Pack 3 80% Lower Patriot Pack 4 80% Lower Patriot Pack 5

    80% Lower Patriot Pack

    Which of your planned builds should you start first? You have the AR-15, the staple of any gun owner's long gun collection. You have the .308, used for punching paper and slamming steel at long range. And you got the AR-9, the combat shooter used for...

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The AR15 80 Lower is a crucial part of any AR15 build. An AR15 80 lower receiver provides the builder an opportunity to complete their own custom AR-15 rifle or pistol from the ground up, including by fabricating the firearm component (the stripped lower receiver) themselves.

What is an AR-15 Lower?

The AR-15 lower is the only part of the rifle or pistol considered a firearm. Even though it doesn't host a barrel and does not necessarily come with a trigger, hammer, safety, or other components (they're installed separately) it is still the component that is considered a gun by the ATF. For this reason, all other parts of the AR-15 can be purchased piece by piece. One can fabricate an AR-15 lower using an 80% unit, purchase an upper receiver or AR-15 parts kit, and assemble their new rifle or pistol at home.

Modular and Universally Compatible

There are countless manufacturers of AR15 80 lowers on the market today. The platform is a “plug-and-play”, or modular, setup that relies on standardized components; upper receiver, triggers, and accessories. 

Your build awaits you!

 Need help? Our FAQ page covers it all.

State Laws May Vary

Some states have banned 80% lowers and certain firearm parts, or have otherwise restricted the sale and ownership of products we sell. So, be sure to check your local and state laws. We can’t ship our products to certain states. Please check our Shipping & Return Policy before placing an order (see restrictions).

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.


We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.