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80 Percent Lower

22 of 22 Items
  • 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)

    If you’re ready to build a top-tier AR-15 for pennies on the dollar, you should be starting with our new, Premium Billet 80% Lower! Expertly crafted in the USA from billet 6061 T6 aluminum, this lower is light, tough as Hell, and compatible with...

    Was: $99.99
    Now: $89.99
  • 80% Lower Fire/Safe Marked (1-pack) 80% Lower Fire/Safe Marked (1-pack) 80% Lower Fire/Safe Marked (1-pack)

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

    (1) Black Fire/Safe Marked 80% Lower Receivers: Color: Anodized Black 100% Mil-Spec Quantity: 1 Fire/Safe Marked: Yes Forged 7075-T6 Aluminum Broached Magwell 100% Made in the USA NO FFL REQUIRED Our gold-standard 80% lower holds a special place in our...

    $84.99
  • Sale
    Hybrid 80 Liberator AR15 80% Lower and Jig Hybrid 80 Liberator AR15 80% Lower and Jig 2

    Hybrid 80 Liberator AR15 80% Lower and Jig - Black

    One of the greatest things about this innovative industry is that now you're no longer confined to simply purchasing an AR at your local gun shop. Plus, if you get any sort of mind to upgrade, mod, or swap out parts after you buy it, well, you're stuck...

    $69.99 - $89.99
  • Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 2 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 3 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 4 Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Black 5

    Polymer80 Lower Receiver and Jig Kit (AR-15, Black)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now you can get a piece of that action too.  We've partnered with Polymer80 to bring you some of their line of 80% lowers, starting with...

    $99.99
  • Sale
    jmt-ar-15-80-gen-2-polymer-lower-with-jig-black-1 jmt-ar-15-80-gen-2-polymer-lower-with-jig-black-2 jmt-ar-15-80-gen-2-polymer-lower-with-jig-black-3 jmt-ar-15-80-gen-2-polymer-lower-with-jig-black-4 jmt-ar-15-80-gen-2-polymer-lower-with-jig-black-5

    JMT AR-15 80% Gen 2 Polymer Lower with Jig - Black

    Want the toughest, lightest, and most affordable 80% lower? Check out JMT’s new Gen 2 Polymer 80% Lower. It includes the required 80% jig for cutting the fire control cavity and drilling the holes for your hammer, safety, and safety lever...

    Was: $89.99
    Now: $79.99
  • .308 80% Lower Fire/Safe Marked (1-pack) .308 80% Lower Fire/Safe Marked (1-pack) .308 80% Lower Fire/Safe Marked (1-pack) .308 80% Lower Fire/Safe Marked (1-pack) .308 80% Lower Fire/Safe Marked (1-pack)

    .308 80% Lower Fire/Safe Marked (1-pack)

    Want to own an AR chambered in .308, but don’t want to deal with the prohibitively high prices at the local gun store? You’ve found the solution with our .308 80% lower. This made-in-the-USA lower is precisely machined from 6061 T6 billet...

    $139.99
  • 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 premier 9mm lower receiver is manufactured from 6061 billet aluminum. It comes with hard coat anodized black finish, has enlarged mag well ramps for competition shooters, and is compatible...

    $139.99
  • jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-1 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-2 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-3 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-4 jmt-ar-15-80-gen-2-polymer-lower-with-jig-fde-5

    JMT AR-15 80% Gen 2 Polymer Lower with Jig - FDE

    JMT’s Gen 2 Polymer 80 Lower, now shipping in Flat Dark Earth, is the perfect way to complete that ultra-light performance AR build with a receiver that perfectly matches your Magpul furniture! This polymer receiver blank ships with it’s own...

    $79.99
  • Sale
    jmt-308-80-gen-2-polymer-lower-with-jig-black-1 jmt-308-80-gen-2-polymer-lower-with-jig-black-2 jmt-308-80-gen-2-polymer-lower-with-jig-black-3 jmt-308-80-gen-2-polymer-lower-with-jig-black-4 jmt-308-80-gen-2-polymer-lower-with-jig-black-5

    JMT 308 80% Gen 2 Polymer Lower with Jig - Black

    JMT’s beefed up and redesigned Gen 2 Polymer 80% Lower is now available in .308 and 7.62 NATO. Build an AR-10 clone or accurate bench rifle and enjoy critical weight savings without sacrificing reliability. Upgraded Polymer This receiver blank was...

    Was: $109.99
    Now: $99.99
  • 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 Combo - The Patriot Pack

    You asked, we listened.  You wanted a combo pack that includes AR-15, AR-9, and LR-308 80% lower receivers, right?  Welp, here ya go.  Check out our Patriot pack for all your AR-building needs.  It comes with an AR-15 lower made from...

    $329.99
  • JMT 80% Lower and Jig - .308, Polymer, Green JMT 80% Lower and Jig - .308, Polymer, Green-2 JMT 80% Lower and Jig - .308, Polymer, Green-3 JMT 80% Lower and Jig - .308, Polymer, Green-4 JMT 80% Lower and Jig - .308, Polymer, Green-5

    JMT 80% Lower and Jig - .308, Polymer, Green

    JMT’s beefed up and redesigned Gen 2 Polymer 80% Lower is now available in .308 and 7.62 NATO and also now available in the OD green color. Build an LR-308 (or AR-10 clone) or accurate bench rifle and enjoy critical weight savings without...

    $89.99
  • jmt-308-80-gen-2-polymer-lower-with-jig-fde-1 jmt-308-80-gen-2-polymer-lower-with-jig-fde-2 jmt-308-80-gen-2-polymer-lower-with-jig-fde-3 jmt-308-80-gen-2-polymer-lower-with-jig-fde-4 jmt-308-80-gen-2-polymer-lower-with-jig-fde-5

    JMT 308 80% Gen 2 Polymer Lower with Jig - FDE

    That new LR-308 rifle doesn’t need to weigh close to 20 pounds. Between that big barrel, variable-zoom optic, bipod, and bench-ready Magpul buttstock, you’re already tipping the scales. To shave critical weight, try out James Madison...

    $99.99
  • Sale
    Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Gray

    Polymer80 80% Lower Receiver and Jig Kit (AR-15) - Gray

    Not many are able to surpass Polymer80 when it comes to innovation, and you can easily see why with their G150 Phoenix Gray 80% lower. This cutting edge AR15 80% lower receiver is made of a polymer composite that not only makes this lower extremely...

    Was: $74.99
    Now: $59.99
  • Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black) Polymer80 Lower Receiver and Jig Kit (LR-308, Black)

    Polymer80 Lower Receiver and Jig Kit (LR-308, Black)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now, there are even parts for the .308 platform of AR rifles, we're helping you get in on that too.  We've partnered with Polymer80 to...

    $124.99
  • Polymer80 Lower Receiver and Jig Kit (AR-15, FDE)

    Polymer80 Lower Receiver and Jig Kit (AR-15, FDE)

    The industry has burst wide open, and super lightweight polymer parts are spilling out into the AR market.  Now you can get a piece of that action too.  We've partnered with Polymer80 to bring you some of their line of 80% lowers, starting with...

    $9.99
  • Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE) Polymer80 Lower Receiver and Jig Kit (LR-308, FDE)

    Polymer80 Lower Receiver and Jig Kit (LR-308, FDE)

    Please note: The end mill bit is no longer contained in this kit. The manufacturer, Polymer80, decided that the end mill bit is no longer unnecessary to complete this frame.  The industry has burst wide open, and super lightweight polymer parts are...

    $124.99
  • .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

    .308 80% Lower Fire/Safe Marked Raw (1-pack)

    If you were looking for the absolutely most affordable .308 AR lower available, look no further. Our raw-finished, pre-engraved 80% lower chambered in .308 should be at the top of your list if you’re looking to build an AR chambered in .308 for...

    $109.99
  • 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. This is a NON-REFUNDABLE product. These blems may or may not be Fire/Safe marked models. Note: These are not covered under...

    $79.99
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An 80 percent lower is the easiest and most affordable way to become the proud new owner of an AR-15 rifle or pistol without having to deal with an FFL, government paperwork, or extra taxes and bureaucratic fees. Available in standard 5.56 NATO or .223 Win, .308 Win, and 9mm, these 80% lowers afford you the same quality stripped receiver that you’d find at the local gun store, minus the high price! All that's required of you, the builder, is some basic cutting and drilling with a tool called an 80% jig, and some simple hand tools.

Need help picking a receiver? Here’s a full guide comparing billet, forged, cast, and polymer options.

"Is building a rifle or handgun like this legal?"

Excellent question: The Gun Control Act of 1968 and the Bureau of Alcohol, Tobacco, and Firearms (ATF) both say it's perfectly legal to craft a gun at home, from scratch. You don't need any paperwork, an FFL license, or a background check. As long as you're not a felon and can otherwise legally own a firearm in your state, you can build a gun at home. Because an 80% lower (or 80% frame for a handgun) is not fully fabricated and is not functional, it's not considered a firearm.

State Laws May Vary

Contrary to federal law, some states have either restricted or banned the sale, transfer, and ownership of 80% lowers, firearm blanks, and other gun parts. Because of these restrictions, we cannot ship our products to certain states. Please confirm whether your state is restricted on our Shipping & Return Policy before placing an order. We cannot fulfill orders to restricted states if placed.

To learn more about 80% percent lowers (state and federal), click here.

Fabricating Your Receiver at Home

Every 80 percent lower is built to standard, "mil-spec" specifications so they’re compatible with any AR-15 lower parts kit trigger assembly, buffer kit, and upper assembly you’d otherwise buy for an off-the-shelf AR-15 receiver. No serialization is required for most states (read the laws linked above to learn more about this) and each 80 percent lower is built using the same billet and forged aluminum alloys as your standard AR-15.

To fabricate your receiver and make it ready for assembly, you'll need to perform four steps:

  1. Drill the trigger pin hole
  2. Drill the hammer pin hole
  3. Drill the safety lever hole
  4. Cut the main cavity for the parts kit

These four steps take less than two hours for most builders with no experience. Experienced "smiths" can complete a receiver blank in around 30 minutes to 1 hour. You'll need a drill press (which can also be used to cut the main cavity with center-cut end mill bits and plunge cutting), a bench top vise, and some machining oil. All 80% jigs include the required drill bits, including a center-cut end mill.

Benefits of an 80 Percent Lower:

  • 100% legal to own and build in all 50 states
  • Requires no FFL to buy, ship, own, or build
  • Maintains same specifications and an off-the-shelf AR-15
  • Requires little to no mechanical knowledge to build!
  • Made from quality billet and forged aluminum alloys
  • CNC machined to military specifications
  • Proudly made in the USA
  • Ships discreetly and legally to your front door!

 


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.