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  • 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 - 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: $54.99
  • Sale
    Magpul® Flip-Up Sight - Front Magpul® Flip-Up Sight - Front

    Magpul® Flip-Up Sight - Front

    MagPul has been a staple among weapon owners for years, and these MagPul AR-15 Front Flip-Up Sights are following that tradition of high-quality products. These MBUS sights will easily fit onto most AR-15 or M16 Picatinny rail platforms. These Flip-Up...

    Was: $36.99
    Now: $27.97
  • Sale
    AR 15 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE | Forged | 80% Lower 1 AR 15 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE | Forged | 80% Lower 2 AR 15 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE | Forged | 80% Lower 3 AR 15 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE | Forged | 80% Lower 4 AR 15 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | FIRE/SAFE | Forged | 80% Lower 5

    Forged Fire/Safe Marked 80% Lower Assembly

    No AR-15 build is complete without a butt stock assembly – and this one comes with all you need: Black FIRE/SAFE engraved 80% lower, lower parts kit, butt stock, buffer tube assembly. One (1) Black FIRE/SAFE 80% Lower Receiver: FIRE/SAFE...

    Was: $148.96
    Now: $129.99
  • Sale
    Flip-Up Mini AR-15 Front & Rear Iron Sights Flip-Up Mini AR-15 Front & Rear Iron Sights

    Flip-Up Mini AR-15 Front & Rear Iron Sights

    Want a pair of bomb-proof, rugged iron sights? Don’t want to spend an arm and a leg? Check out our mini flip-up front and rear sights! These little irons are machined from billet 6061 T6 aluminum, the same stuff the black rifle’s receiver is...

    Was: $39.99
    Now: $27.97
  • Sale
    Blemished - .308 80% Lower - Billet Blemished - .308 80% Lower - Billet Blemished - .308 80% Lower - Billet Blemished - .308 80% Lower - Billet Blemished - .308 80% Lower - Billet

    Blemished - .308 80% Lower - Billet

    Blemished .308 80% Lower: Small scuffs, 100% performance. Save a couple bucks on your 80% AR-10 build! These blemished .308 receiver blanks feature small surface blemishes, which may include slight scratches or scuffs -- but they're perfectly functional...

    Was: $109.99
    Now: $99.99
  • Sale
    Glock® 19 Compatible Slide w/ Rear Serration 4 Glock® 19 Compatible Slide w/ Rear Serration 1 Glock® 19 Compatible Slide w/ Rear Serration 2 Glock® 19 Compatible Slide w/ Rear Serration 3

    Glock® 19 Compatible Slide w/ Rear Serration

    Finish your GLOCK® 19-compatible P80 build, or upgrade your current Gen 1 to 3 GLOCK® pistol! It functions as reliably as an OEM slide, because it meets OEM specs. This slide features an ultra-hard tungsten carbide finish. This incredibly tough,...

    Was: $169.99
    Now: $149.99
  • Sale
    .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 Lower Assembly | Lower Parts Kit | Butt Stock | Buffer Tube | Billet 80% Lower 5

    .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...

    Was: $208.96
    Now: $199.99
  • Sale
    UTG® Quick Install Dust Cover -  .223/5.56,  Black UTG® Quick Install Dust Cover -  .223/5.56,  Black 2 UTG® Quick Install Dust Cover -  .223/5.56,  Black 3 UTG® Quick Install Dust Cover -  .223/5.56,  Black 4 UTG® Quick Install Dust Cover -  .223/5.56,  Black 5

    UTG® Quick Install Dust Cover - .223/5.56, Black

    Installing a dust cover onto your AR's upper receiver can be a pain. If you're starting with just parts, you need to install the C-clamp onto the rod without launching it across the room and never seeing it again. Then you thread the rod through the...

    Was: $9.99
    Now: $0.99
  • Sale
    Magpul M-LOK® MVG® Vertical Grip

    Magpul® M-LOK® MVG® Vertical Grip

    The Magpul M-LOK MVG Vertical Grip is a reinforced hard polymer material that attaches directly to M-LOK handguards and forends. The TSP texture and lightweight design allows for optimal control in any environment. Additional Features: Length: 3.0 in...

    Was: $21.81
    Now: $19.97
  • Sale
    LANTAC SSR-3.5˜Super Short Reset 3.5 lb Connector

    LANTAC SSR-3.5 lb Super Short Reset 3.5 lb Connector

    Out of the box, some people don't like the feel of the factory trigger pull on their new Glock®. But not to worry, fixing an undesireable trigger pull is one of the easiest jobs you can do to the internal components. Even easier, if you're building...

    Was: $17.99
    Now: $9.97
  • Sale
    Magpul MagLink® Coupler – PMAG® 30/40 AR/M4

    Magpul® MagLink® Coupler - PMAG® 30/40 AR/M4

    The Magpul MagLink Coupler has a strong polymer design that is lightweight which allows the shooter to be quick and efficient with reloading. This two-piece non flex MagLink Coupler architecture, attaches two magazines together allowing the shooter to...

    Was: $17.05
    Now: $12.97
  • Sale
    Magpul® MOE® Polymer Rail, 5 Slots

    Magpul® MOE® Polymer Rail, 5 Slots

    Everybody knows M-Lok handguards are amazing when it comes to versatility in mounting your favorite accessories to your AR. But the handguard only gives you the real estate; it doesn't give you the means. Here are the means. This is a five-slot section...

    Was: $9.99
    Now: $7.97
  • Sale
    Magpul RVG® - Rail Vertical Grip

    Magpul® RVG® - Rail Vertical Grip

    The Magpul RVG is a traditional vertical grip made out of durable polymer that is lightweight and has a low profile. With the aggressive TSP texture this allows for more control and is designed for the 1913 Picatinny rail hand guards.  Additional...

    Was: $23.70
    Now: $17.97
  • Sale
    Magpul QD Sling Swivel

    Magpul® QD Sling Swivel

    The Magpul QD Sling Swivel is a detachable manganese-phosphate coated steel design, that is compatible with any push-button 1-1/4 inch webbing for QD sling attachment points, including the two-point MS1 Sling.  Additional Features: Platform: AR15,...

    Was: $13.99
    Now: $11.97
  • Sale
    r-j-single-stage-drop-in-trigger-1 r-j-single-stage-drop-in-trigger-2 r-j-single-stage-drop-in-trigger-3 r-j-single-stage-drop-in-trigger-4 r-j-single-stage-drop-in-trigger-5

    Single Stage Drop-In Trigger

    Look, everybody knows you need a trigger to make your AR do its job. And while all those mil-spec triggers out there that come in who knows how many lower parts kits do their job adequately, that's just it. They're just "adequate." Time to step it up and...

    Was: $159.99
    Now: $99.97
  • Sale
    ALG Defense ACT Advanced Combat Trigger

    ALG Defense ACT Advanced Combat Trigger

    Got an admiration for AR builds resembling those from a previous era? We do too. But if you're like us, you're just not a fan of the mil-spec trigger. It's gritty and has a rough pull, and it generally feels like crap. But there's a way to keep that...

    Was: $69.00
    Now: $67.97
  • Sale
    Strike Industries 5.56/.223 King Comp Compensator Strike Industries 5.56/.223 King Comp Compensator Strike Industries 5.56/.223 King Comp Compensator

    Strike Industries King Comp .223/5.56 Compensator

    Staying on target is key when taking follow-up shots. The best way to achieve this is to train yourself to keep your barrel level between trigger squeezes. To give yourself a little help in that department, you can swap out your mil-spec A2 flash hider...

    Was: $44.95
    Now: $34.97
  • Sale
    Magpul® Flip-Up Sight - Rear Magpul® Flip-Up Sight - Rear

    Magpul® Flip-Up Sight - Rear

    MagPul Backup Sights are a necessity for any and all AR-15 and M16 weapons. Having the dependability of a backup sight in case your optics system goes down, is imperative for field operators and general gunmen alike. These Rear Flip-Up Sights are a great...

    Was: $54.99
    Now: $39.97
  • Sale
    Ghost Complete Trigger Kit - Pro 3.3

    Ghost Complete Trigger Kit - Pro 3.3

    So you've decided to build your own double stack Glock® compatible pistol. You have a size whatever, gen whatever. And you know something about triggers beyond just hearing "you need these parts" and then blindly just using the trigger parts that...

    Was: $44.95
    Now: $39.97
  • Sale
    Real Avid Smart Bench Block - Universal Real Avid Smart Bench Block - Universal 2 Real Avid Smart Bench Block - Universal 3 Real Avid Smart Bench Block - Universal 4 Real Avid Smart Bench Block - Universal 5

    Real Avid Smart Bench Block - Universal

    When you work on either your AR or the smaller parts of your 1911 or a similar handgun, you could find yourself needing an extra pair of hands to hold something in just the right way so you can hammer a pin. You don't just want to clamp your barrel,...

    Was: $14.99
    Now: $9.97

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.