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22 of 22 Items
  • 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...

    $69.99
  • 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...

    $99.99
  • .308 80% Lower Fire/Safe Engraved .308 80% Lower Fire/Safe Engraved .308 80% Lower Fire/Safe Engraved .308 80% Lower Fire/Safe Engraved .308 80% Lower Fire/Safe Engraved

    .308 80% Lower Fire/Safe Engraved

    Enjoy the classic black look with our .308 80% lower receiver. Billet 7075-T6 Aluminum, these are incredibly rugged lowers that are made to last and are anodized black to help protect against corrosion. They also come marked with Fire/Safe engraving and...

    $139.99
  • Sale
    80% Lower Patriot Pack w/ Premium .308 Lower 2 80% Lower Patriot Pack w/ Premium .308 Lower 2 80% Lower Patriot Pack w/ Premium .308 Lower 3 80% Lower Patriot Pack w/ Premium .308 Lower 4 80% Lower Patriot Pack w/ Premium .308 Lower 6

    80% Lower Patriot Pack w/ Premium .308 Lower

    The AR platform has such an amazing variety that sometimes, it can be hard to choose a favorite. Well we're here to tell you, that you don't have to. Grab yourself out bundle of 100% made in USA, black anodized Lower receivers! (1) Black Fire/Safe Marked...

    Was: $389.99
    Now: $324.99
  • AR-9 80% Billet Lower - 9mm, (1-pack) AR-9 80% Billet Lower - 9mm, (1-pack) 2 AR-9 80% Billet Lower - 9mm, (1-pack) 3 AR-9 80% Billet Lower - 9mm, (1-pack) 4

    AR-9 80% Billet Lower - 9mm, (1-pack)

    Introducing the first of its kind 9MM AR 80% Lower Receiver. This AR-9 80% lower receiver is made for the 9mm caliber. Manufactured from 6061-T6 billet aluminum, this receiver's precision-cut using CNC. It features Type III hard coat anodizing and...

    $129.99
  • .308 80% Lower Fire/Safe Engraved - Raw .308 80% Lower Fire/Safe Engraved - Raw .308 80% Lower Fire/Safe Engraved - Raw .308 80% Lower Fire/Safe Engraved - Raw .308 80% Lower Fire/Safe Engraved - Raw

    .308 80% Lower Fire/Safe Engraved - Raw

    There are builders who enjoy working on their lowers in just about every aspect. Well this .308 80% lower receiver billet comes to you without a finish, so that once you've completed your lower yourself, you're allowed creative freedom of what finish...

    $119.99
  • AR15 Billet Match Set - Stripped Upper & 80% Lower AR15 Billet Match Set - Stripped Upper & 80% Lower 2 AR15 Billet Match Set - Stripped Upper & 80% Lower 3 AR15 Billet Match Set - Stripped Upper & 80% Lower 4 AR15 Billet Match Set - Stripped Upper & 80% Lower 5

    AR15 Billet Match Set - Stripped Upper & 80% Lower

    When it comes to building just about anything, you're construct needs to have a strong foundation to start, and the AR15 is no exception. With both stripped upper and 80% lower receiver machined from 6061 T6 aluminum, you are guaranteed an ultralight yet...

    $159.99
  • 80% Lower Fire/Safe Marked Billet Raw

    80% Lower Fire/Safe Marked Billet Raw

    (1) Raw 80% Lower Billet Receiver: Color: Raw - no anodization 100% Mil-Spec Quantity: 1 Fire/Safe Marked: Yes Oversized built-in trigger guard Rear takedown lug is pre-milled Billet 6061-T6 Aluminum 100% Made in the USA WARNING: Handling...

    $89.99
  • 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...

    $59.99
  • Premium .308 80% Lower Fire/Safe Engraved Premium .308 80% Lower Fire/Safe Engraved Premium .308 80% Lower Fire/Safe Engraved Premium .308 80% Lower Fire/Safe Engraved Premium .308 80% Lower Fire/Safe Engraved

    Premium .308 80% Lower Fire/Safe Engraved

    Fire/Safe Engraved Billet .308 80% Lower Receiver: Platform: .308 Color: Anodized Black Type III Hard Anodized Billet DPMS Gen 1 Quantity: 1 Fire/Safe Marked: Yes Threaded Bolt Catch Hole (threaded pin included) Billet 6061-T6 Aluminum Broached...

    $129.99
  • 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...

    $314.99
  • .308 80% Lower Fire/Safe Marked Raw (1-pack) .308 80% Lower Fire/Safe Marked Raw (1-pack)-2 .308 80% Lower Fire/Safe Marked Raw (1-pack)-3 .308 80% Lower Fire/Safe Marked Raw (1-pack)-4 .308 80% Lower Fire/Safe Marked Raw (1-pack)-5

    Premium .308 80% Lower Fire/Safe Engraved - Raw

    (1) Raw Fire/Safe Marked Billet .308 80% Lower Receiver: Platform: .308 Color: Raw, no anodization DPMS Gen 1 Quantity: 1 Fire/Safe Marked: Yes Billet 6061-T6 Aluminum Broached Magwell Enhanced, heavy duty trigger guard 100% Made in the USA   .308...

    $109.99
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Every 80 percent lower we sell is proudly made in the U.S.A. from quality billet aluminum (6061-T6), mil-spec forged aluminum (7075-T6), or weapons-grade polymer.

What is an 80% Lower Receiver?

Officially called a “receiver blank” by the Bureau of Alcohol, Tobacco, and firearms (ATF), an 80% lower is an unfinished receiver that isn’t considered a firearm under federal law. Cutting and drilling the lower at home with hand tools turns it into a ready-to-build firearm by legal definition. Whether it’s an AR-15 80 lower or AR-10 80 lower, thousands of shooters have built reliable and accurate rifles and pistols with our units.

Read this FAQ and guide to learn more.

What is an 80% Frame?

Like an 80% lower, an 80% frame is an unfinished blank that functions as the firearm component of an assembled handgun once fabricated. And, like an 80% lower, the frame blank requires some basic cutting and drilling operations to make it ready for assembly. 80% frames are available for the GLOCK and 1911 platforms. GLOCK-compatible frames are made by Polymer80. All 1911 80% frames are made by Stealth Arms from forged (7075-T6) aluminum.

Have questions? This guide compares all 80% lowers and frames.

80% Lowers: State Laws 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).

Execute the right to bear arms today. Your build awaits!


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 80-Lower.com, 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.