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  • Sale
    Blemished .308 80% Lower Fire/Safe Engraved - Anodized Black 1 Blemished .308 80% Lower Fire/Safe Engraved - Anodized Black 2 Blemished .308 80% Lower Fire/Safe Engraved - Anodized Black 3 Blemished .308 80% Lower Fire/Safe Engraved - Anodized Black 4 Blemished .308 80% Lower Fire/Safe Engraved - Anodized Black 5

    Blemished - .308 80% Lower Fire/Safe Marked - Billet

    Blemished .308 80% Lower: Minor scratches, perfectly functional. Sometimes, receivers get a ding or scratch -- it's just part of forging gun parts. We discount these cosmetically blemished 80% lowers to reflect these flaws. Each lower is 100% functional...

    Was: $119.99
    Now: $99.99
  • .308 80% Lower Fire/Safe Engraved - Anodized Black 1 .308 80% Lower Fire/Safe Engraved - Anodized Black 2 .308 80% Lower Fire/Safe Engraved - Anodized Black 3 .308 80% Lower Fire/Safe Engraved - Anodized Black 4

    .308 80% Lower Fire/Safe Marked - Billet

    Enjoy the classic black look with our .308 80% lower receiver. Made from billet 6061-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...

    $119.99
  • Sale
    80% Lower Patriot Pack w/ Premium .308 Lower 1 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 5

    80% Lower Fire/Safe Marked Patriot Pack

    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! Find a lower parts kit to...

    Was: $264.99
    Now: $259.99
  • Premium .308 80% Lower Fire/Safe Engraved - Raw 2 Premium .308 80% Lower Fire/Safe Engraved - Raw 3 Premium .308 80% Lower Fire/Safe Engraved - Raw 4 Premium .308 80% Lower Fire/Safe Engraved - Raw 5 Premium .308 80% Lower Fire/Safe Engraved - Raw 6

    Premium .308 80% Lower Fire/Safe Marked - Billet 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 Find a...

    $119.99
  • Sale
    80% Lower Patriot Pack 1 80% Lower Patriot Pack 2 80% Lower Patriot Pack 3 80% Lower Patriot Pack 4 80% Lower Patriot Pack 5

    80% Lower Patriot Pack

    Build all three ARs with one 80% lower combo kit. Originally chambered in 5.56 NATO and .223 remington, the AR has evolved to chamber different calibers, with upper and lower receivers redesigned to include the .308 AR-10, and the 9mm AR9. It can be hard...

    Was: $264.99
    Now: $259.99
  • .308 80% Lower .308 80% Lower .308 80% Lower .308 80% Lower

    .308 80% Lower - Billet

    Enjoy the classic black look with our .308 80% lower receiver. Made from billet 6061-T6 Aluminum, these are incredibly rugged lowers that are made to last and are anodized black to help protect against corrosion. They are NOT marked with Fire/Safe...

    $119.99
  • Premium .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE Billet 80% Lower Premium .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE Billet 80% Lower 2 Premium .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE Billet 80% Lower 3 Premium .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE Billet 80% Lower 4

    Premium .308 Fire/Safe Marked 80% Lower Assembly

    Got your mind set on building your own AR10 Rifle? Then check out this lower assembly that features a premium .308 80% lower crafted from 7075-T6 aluminum billet and anodized black with fire/safe engraving. It also includes a lower parts kit that has...

    $199.99
  • .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube |Billet 80% Lower 1 .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube |Billet 80% Lower 2 .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube |Billet 80% Lower 3 .308 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | Billet 80% Lower 4

    .308 80% Lower Assembly

    Got your mind set on building your own AR10 Rifle? Then check out this lower assembly that features a .308 80% lower crafted from 7075-T6 aluminum billet and anodized black. It also includes a lower parts kit that has been laser cut and polished for a...

    $214.99
  • .308 80% Lower - Raw 1 .308 80% Lower - Raw 2 .308 80% Lower - Raw 3 .308 80% Lower - Raw 4

    .308 80% Lower - Billet Raw

    Figure out the look of your next .308 build with our .308 80% raw lower receiver. Made from billet 6061-T6 Aluminum, these are incredibly rugged lowers that are made to last and are unfinished to allow for the durakote, cerakote, or other finish of your...

    $114.99
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The "AR-10" 80% Lower (designed for the LR-308 platform by DPMS) is a step up from the AR-15 platform in performance and capability. By upgrading from 5.56 NATO to .308 Winchester or 7.62x51mm NATO rounds, you'll easily ring steel out to 600+ yards. The LR-308 lower receiver is the big brother to the 5.56 NATO receiver and packs a bigger punch while allowing you to customize your build from scratch.

Is the LR-308 and AR-10 The Same?

Effectively, yes. Technically, no: Both rifle platforms use the same, exact types of parts and they function identically. But there are slight physical differences in the shapes of the rifles' upper and lower receivers. This means an original AR-10 upper wouldn't work on an LR-308. That's okay, though -- the AR-10 platform is decades old and isn't produced for the civilian market.

The LR-308 platform looks, feels, and performs like the AR-10 and takes the role as the dominant .308-chambered AR platform. Grab an LR-308 build kit to assemble your .308 80% lower once it's fabricated, and you'll be ready for some long-range shooting.

See the differences between the AR-10 and LR-308 receivers.

LR-308 80% Lower Features:

  • Type III Hardcoat Anodized versions available
  • Compatible with all DPMS LR-308 components
  • CNC-machined from 6061-T6 billet aluminum
  • Proudly made in the USA

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

This guide covers all 80% lowers and frames.

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 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.