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36 of 61 Items
  • Sale
    80% Lower Fire/Safe Marked - Anodized Black 1 80% Lower Fire/Safe Marked - Anodized Black 2 80% Lower Fire/Safe Marked - Anodized Black 3 80% Lower Fire/Safe Marked - Anodized Black 4 80% Lower Fire/Safe Marked - Anodized Black 5

    80% Lower Fire/Safe Marked - Anodized Black

    Our famous, original forged 80% lower. It's the lower trusted by tens of thousands of AR builders. Proudly forged, cut, and anodized in the U.S.A., this 80 percent lower is the key to building your custom AR-15 truly from scratch. This receiver blank...

    Was: $74.99
    Now: $69.99
  • Sale
    80% Lower (1-pack) - Blemished 80% Lower (1-pack) - Blemished 80% Lower (1-pack) - Blemished 80% Lower (1-pack) - Blemished 80% Lower (1-pack) - Blemished

    Blemished - 80% Lower Fire/Safe Marked - Anodized Black

    Blemished 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 and...

    Was: $64.99
    Now: $59.99
  • Sale
    Glock® Compatible 19 Gen 4 Lower Parts Kit

    Glock® Compatible 19 Gen 4 Lower Parts Kit

    We take stock Glock® compatible 19 pistols and mod and customize the hell out of them. In the same way the AR-15 is the most customizable rifle in the world, the Glock® compatible pistol is the most customizable handgun. But the vast majority of...

    Was: $79.99
    Now: $54.99
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    Ghost Ultimate 3.5 lb Trigger For Glocks® - Gen 1-5

    Ghost Ultimate 3.5 lb Connector For Glocks® - Gen 1-5

    For those of us who get down and dirty with our double-stack Glock® compatible pistols, we have to take extra care of our sidearms, lest we have to spend more time cleaning the crap out of 'em after a good training session or duty. Too much debris...

    Was: $17.95
    Now: $14.99
  • Sale
    Blemished 80% Lower Fire/Safe Marked Billet 1 Blemished 80% Lower Fire/Safe Marked Billet 2 Blemished 80% Lower Fire/Safe Marked Billet 3 Blemished 80% Lower Fire/Safe Marked Billet 4 Blemished 80% Lower Fire/Safe Marked Billet 5

    Blemished - 80% Lower Fire/Safe Marked - Billet

    Blemished Black Billet Premium 80% Lower This receiver is blemished. Surface marks will vary. The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. NOTE: BLEMISHED LOWERS ARE FINAL SALES AND NON-REFUNDABLE...

    Was: $89.99
    Now: $84.99
  • Sale
    Mil-spec 6-Position AR-15 Buffer Tube Mil-spec 6-Position AR-15 Buffer Tube 2 Mil-spec 6-Position AR-15 Buffer Tube 3

    Mil-spec 6-Position AR-15 Buffer Tube

    If you're building your own AR rifle, your stock, brace, or whatever you plan on having on its rear end has to mount on somehow. You'll need a buffer tube. This is a standard mil-spec buffer tube and is compatible with all the common calibers and...

    Was: $17.99
    Now: $13.99
  • Sale
    PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit 1 PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit 2 PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit 3 PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit 4 PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit 5

    PSA 9MM SBA3 MOE EPT Pistol Lower Assembly Kit

    Why waste time choosing each part for your AR9's lower? This lower build kit includes all the parts you need to assemble your fabricated AR9 80% lower or retail-bought 9mm stripped lower. Note: Due to ATF rule 2021R-08F, any pistol with a stabilizing...

    Was: $299.99
    Now: $189.99
  • Sale
    ETS G43 7-Round Mag (9mm) + Pearce Grip Extension ETS G43 7-Round Mag (9mm) + Pearce Grip Extension 2 ETS G43 7-Round Mag (9mm) + Pearce Grip Extension 3 ETS G43 7-Round Mag (9mm) + Pearce Grip Extension 4 ETS G43 7-Round Mag (9mm) + Pearce Grip Extension 5

    ETS G43 7-Round Mag (9mm) + Pearce Grip Extension

    The Mag Some of us know exactly how many rounds we have left at all times. For the rest of us, now there's help, especially if you carry a G43. This is the ETS G43 7-Round Magazine with Pearce Grip Extension. Now whenever you take your G43 out for a day...

    Was: $29.99
    Now: $24.99
  • Sale
    Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise 2 Bushnell 3 MOA 1x25mm AR Red Dot Sight - TRS-25 HiRise 3

    Bushnell 3 MOA 1x20mm AR Red Dot Sight - TRS-25 HiRise

    If you've already gotten some serious trigger time using good old iron sights to aim, then by now, you're aware of the limitations that backup irons present to a shooter. Conversely, you're starting to become aware of the advantages of using a red dot...

    Was: $99.99
    Now: $89.97
  • Sale
    SIG SAUER® Compatible Slide - P320, Black Cerakote SIG SAUER® Compatible Slide - P320, Black Cerakote 2 SIG SAUER® Compatible Slide - P320, Black Cerakote 3 SIG SAUER® Compatible Slide - P320, Black Cerakote 4 SIG SAUER® Compatible Slide - P320, Black Cerakote 5

    SIG SAUER® Compatible Slide - P320™, Black Cerakote

    The P320 by Sig Sauer® is an extremely versatile sidearm. It can be virtually any size of pistol you need it to be due to its ability to change out its frames, or its "grip modules." This unique feature makes it easy to understand why so many people...

    Was: $279.99
    Now: $219.97
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    Spike's Tactical - AR-308 Lower Parts Kit

    Spike's Tactical - AR-308 Lower Parts Kit

    The Spike's Tactical AR-308 Lower Parts Kit sports military-grade hardware (minus that third safety position) with a great fit and finish. This kit is compatible with both retail-bought .308 stripped lowers, and .308 80% lower receivers. What's...

    Was: $64.80
    Now: $59.99
  • Sale
    Glock® 17 Compatible Slide w/ Rear Serration - FDE 1 Glock® 17 Compatible Slide w/ Rear Serration - FDE 2 Glock® 17 Compatible Slide w/ Rear Serration - FDE 3 Glock® 17 Compatible Slide w/ Rear Serration - FDE 4

    Glock® 17 Compatible Slide w/ Rear Serration - FDE

    Gen 1 to 3 compatible. OEM-spec internals with rear serrations. Cerakoted FDE. This GLOCK® 17-compatible slide features a slick bullnose profile with improved, multi-directional front and rear serrations providing improved grip. This slide's also cut...

    Was: $169.99
    Now: $129.99
  • Sale
    Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS 2 Holosun 2 MOA 20mm (Solar) Red Dot Sight -  MRS 3

    Holosun 2 MOA 20mm (Solar) Red Dot Sight - MRS

    Time to upgrade your ability to quickly acquire a target. Check out the Holosun HS503CU MRS (Multiple Reticle System) Red Dot Sight. It features a solar failsafe, so you never have to worry about having a dead battery. It's got Holosun's "shake awake"...

    Was: $259.99
    Now: $209.97
  • Sale
    Glock® 21 Compatible Upper Parts Kit

    Glock® 21 Compatible Upper Parts Kit

    Building a custom G21 or PF45 slide? You need this slide parts kit. Ready to build a custom GLOCK® slide for your Gen 3 pistol or Polymer80 build? You need to pair it with a parts kit like this one. We've got your PF45 build (or factory GLOCK®...

    Was: $104.99
    Now: $89.99
  • Sale
    Bravo Company AR-15 Trigger Assembly - PNT, Nickel

    Bravo Company AR-15 Trigger Assembly - PNT, Nickel

    It's time to get serious about your AR's trigger. Two words: Bravo Company. And this is their PNT Trigger Assembly. Sure it's been given a nickel finish, but that's not all. The interacting surfaces of its individual parts have also been coated in PNT,...

    Was: $69.95
    Now: $65.99
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    Magpul PRS® GEN3 Precision-Adjustable Stock

    Magpul® PRS® GEN3 Precision-Adjustable Stock

    The Magpul PRS GEN3 Precision-Adjustable Stock is the ultimate shoulder rest for enhanced AR accuracy. With a built-in cheek riser, adjustable rubber pad for recoil mitigation, precision adjustment knobs, and mil-spec tube fitment, the PRS GEN3 allows...

    Was: $242.20
    Now: $229.99
  • Sale
    Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 2 Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26 3

    Bushnell 3 MOA 1x26mm AR Red Dot Sight - TRS-26

    Bushnell set the standard for red dot optics for your AR or other long gun with their TRS-26. This red dot sight has a bright and clear 3 MOA dot seen in a 1x26mm lens. The controls are push-button instead of a dial for more ease of use, and its battery...

    Was: $136.99
    Now: $119.97
  • Sale
    Magpul RSA® QD - Rail Sling Attachment QD Magpul RSA® QD - Rail Sling Attachment QD 2 Magpul RSA® QD - Rail Sling Attachment QD 3 Magpul RSA® QD - Rail Sling Attachment QD 4 Magpul RSA® QD - Rail Sling Attachment QD 5

    Magpul® RSA® QD - Rail Sling Attachment QD

    The Magpul RSA QD is a low profile, two point sling positioned at an angle for maximum comfort and easy accessibility to the push-button. The RSA QD provides a forward attachment point compatible with other QD swivel system slings and the Magpul MS4...

    Was: $29.99
    Now: $22.97
  • Sale
    Bushnell AR Optics Engulf Micro Reflex Red Dot Sight Bushnell AR Optics Engulf Micro Reflex Red Dot Sight 2 Bushnell AR Optics Engulf Micro Reflex Red Dot Sight 3 Bushnell AR Optics Engulf Micro Reflex Red Dot Sight 4 Bushnell AR Optics Engulf Micro Reflex Red Dot Sight 5

    Bushnell AR Optics Advance Micro Reflex Sight

    Pistol- and AR-compatible. Perfect for close quarters. The Advance Micro Reflex Sight is the lightest and smallest red dot in the Bushnell AR Optics family, and it packs big performance into a compact package. It projects a 5-MOA dot through rugged...

    Was: $149.99
    Now: $129.97
  • Sale
    Full-Sized 5" 1911 Slide - .45acp - Matte Nickel Full-Sized 5" 1911 Slide - .45acp - Matte Nickel 2 Full-Sized 5" 1911 Slide - .45acp - Matte Nickel 3 Full-Sized 5" 1911 Slide - .45acp - Matte Nickel 4 Full-Sized 5" 1911 Slide - .45acp - Matte Nickel 5

    Full-Sized 5" 1911 Slide - .45acp - Matte Nickel

    The RIA matte nickel slide: A bit of bling, tons of protection. Rock Island Armory's matte nickel 5" 1911 slide perfectly balances good looks with insane durability. This nickel-plated slide provides a bit of flash, plus the added benefit of a completely...

    Was: $159.99
    Now: $139.99
  • Sale
    Samson Fixed Rear Sight (A2) Samson Fixed Rear Sight (A2) 2

    Samson Fixed Rear Sight (A2)

    Durable, lightweight, classic H&K-type iron sight. The Samson Fixed Rear Sight is arguably an improvement when compared to the USGI rear post. And yet, the A2-type rear sights off most M16s and M4s can't be beat. So, why not pair them up? That's...

    Was: $59.99
    Now: $49.97
  • Sale
    Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 2 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 3 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 4 Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO 5

    Sig Sauer® 3MOA 1X30mm Reflex Sight - Romeo1 PRO

    Sig Sauer's produced some of the most reliable, accurate handguns in the world. They've managed to push the envelope further by developing one of the most lightweight, compact and capable micro red dots, ever: The Romeo1 PRO Reflex Sight. To achieve its...

    Was: $429.99
    Now: $399.97
  • Sale
    Glock® 21 Compatible RMR Cut Bull Nose Slide - .45acp Glock® 21 Compatible RMR Cut Bull Nose Slide - .45acp 2 Glock® 21 Compatible RMR Cut Bull Nose Slide - .45acp 3 Glock® 21 Compatible RMR Cut Bull Nose Slide - .45acp 4 Glock® 21 Compatible RMR Cut Bull Nose Slide - .45acp 5

    Glock® 21 Compatible RMR Cut Bull Nose Slide - .45 ACP

    Gen 3 compatible. RMR optic cut. Improved serrations and machining. This GLOCK® 21-compatible slide features a slick bullnose profile with improved, multi-directional front and rear serrations providing improved grip. This slide's also cut from 416R...

    Was: $179.99
    Now: $169.99
  • Sale
    Fortis Manufacturing, Inc. RED 5.56 Muzzle Brake Fortis Manufacturing, Inc. RED 5.56 Muzzle Brake Fortis Manufacturing, Inc. RED 5.56 Muzzle Brake

    Fortis Manufacturing Inc. RED 5.56 Muzzle Brake

    If you frequently put many rounds downrange with your .223/5.56 AR in rapid succession, you need to squeeze as much control out of your rifle as possible. One way to do this is to replace your mil-spec A2 flash hider with a muzzle brake. For exactly this...

    Was: $79.99
    Now: $69.97
  • Sale
    Glock® 43 Compatible RMSC Cut Bull Nose Slide 1 Glock® 43 Compatible RMSC Cut Bull Nose Slide 2 Glock® 43 Compatible RMSC Cut Bull Nose Slide 3 Glock® 43 Compatible RMSC Cut Bull Nose Slide 4 Glock® 43 Compatible RMSC Cut Bull Nose Slide 5

    Glock® 43 Compatible RMSC Cut Bull Nose Slide

    Improved serrations, better looks, and RMSc-cut for optics. This upgraded GLOCK® 43 slide provides the perfect upgrade for your Gen 3 factory pistol or your Polymer80 build. It sports 3D cut and raised front and rear serrations with better grip, a...

    Was: $159.99
    Now: $139.99
  • Sale
    AR-10/.308 Forged Stripped Upper Receiver - Anodized AR-10/.308 Forged Stripped Upper Receiver - Anodized AR-10/.308 Forged Stripped Upper Receiver - Anodized

    AR-10/.308 Forged Stripped Upper Receiver

    Finished up your 80% lower or stripped lower and want to assemble your own upper receiver piece by piece? Start with quality: Grab one of our forged, mil-spec (7075-T6) "Flattop" stripped AR10 upper receivers. This M4-type upper features a standard...

    Was: $99.99
    Now: $94.99
  • Sale
    Caldwell Lead Sled Weight Bag, Standard, 4 pack

    Caldwell Lead Sled Weight Bag, Standard, 4 pack

    Picked up a Lead Sled? Great. Now you need to keep it steady. Grab Caldwell's convenient 4-pack of weighted bags. They're made from thick nylon with reinforced handles. They're capable of holding up to 7 pounds of sand, or 25 pounds of lead sled to keep...

    Was: $29.99
    Now: $22.97
  • Sale
    Real Avid Handgun Cleaning Mat - Smart

    Real Avid Handgun Cleaning Mat - Smart

    When it comes to cleaning, maintenance, and upgrades to your sidearm, you have your tool situation handled. That's a great step in the right direction. Now you need a regular and consistent place to do your work. Whether you choose the work bench out in...

    Was: $21.99
    Now: $15.97
  • Sale
    Spike's Tactical R2 5.56 Muzzle Brake Spike's Tactical R2 5.56 Muzzle Brake Spike's Tactical R2 5.56 Muzzle Brake

    Spike's Tactical R2 5.56 Muzzle Brake

    Spike's Tactical gets it when it comes to reducing felt recoil for your AR-15. Sure the AR might not kick a lot to begin with, but for you that have AR pistols and generally shorter-barreled builds, the R2 from Spike's Tactical will work wonders. The R2...

    Was: $59.99
    Now: $49.97
36 of 61 Items

We always update this page with our latest and great products, on sale today! Part of our commitment to you at 80-lower.com includes promising the lowest possible prices on 80 lower receiver units, AR-15 uppers, bulk purchases, 80 lower jigs, sights and scopes, accessories, and much more.

80% Lowers on Sale

Grab an O.G. forged 80% lower with an anodized finish for the lowest possible price online, anywhere! This lower has been built to exact mil-spec measurements, guaranteeing compatibility with other retail AR-15 parts.

Discounted Build Kits Available Now

Looking for a complete build kit, but don't want to spend an arm and leg? We didn't forget about you. Our Ultimate Premium AR-15 Rifle Kit is currently on sale, as well as our 5" Government Black 1911 Build Kit in 9mm!


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.