Showing all 12 results
Robust. Effective. Efficient. Why screw around with “complicated” when it comes to your AR? This build kit brings you one of the most efficient builds in our catalog. This black rifle kit gets you a solid base for a rifle that you can then use as is, or modify by adding accessories (light, laser, vertical…
Ultra-light with hyper accuracy, this upgraded M4-type AR15 rifle upper is setting a new standard. Tucked under a lightweight free-float M-LOK handguard is a Government-profile M4 barrel forged from mil-spec 4150 Chromoly Vanadium with a 1:8 twist. Throw some 62-grain M193 or 77-grain Match Kings down the muzzle, and you’ll put one hole atop another…
Please note: We strive to provide the most accurate photographs of our product wherever possible. Due to availability limitations and supply chain constraints, slight variations of the handguard of this upper assembly may occur in the aesthetics of the skeletonizations in between the M-LOK sections. For the longrange shooter who demands a do-it-all AR with…
Maximize the performance of .308 with this match-grade, stainless, fluted, heavy-barreled upper. Paired with a free-float M-LOK handguard and low-profile gas system, this .308 upper maximizes accuracy and provides plenty of rail estate for your favorite accessories and attachments. The inner workings are handled by a quality, mil-spec CMMG lower parts kit with a crisp,…
Want an LR-308 that looks as good as it performs? This side-charging LR-308 build kit comes with a pre-built upper that features a 20″ nitride and straight-fluted SOCOM barrel to offer incredible accuracy with improved ergonomics. Its custom bolt features an integrated charging handle. Also included is a quality lower build kit with mil-spec components…
Side-Charging .223 Wylde AR-15 Rifle Kit with 16″ Parkerized Barrel and 15″ M-LOK Handguard Most AR-15s could use a little help in two areas: accuracy and handling. This kit tackles both. The 16″ barrel is a .223 Wylde, so it feeds .223 Remington and 5.56 NATO equally well while keeping groups tight, and the side-charging…
Reliable. Versatile. Range-ready. When it’s time to assemble your next build, don’t settle for piecing together random parts. This AR-15 rifle kit gives you the perfect foundation for a high-performance build, pairing our premium 5.56 NATO stainless steel upper with all the essential furniture you need to finish your receiver. Whether you’re building a precision…
Putting the AK’s best attribute into an FDE Cerakote AR-15 kit. That best attributes is, of course, the AK’s 7.62×39 cartridge. This AR-15 rifle kit provides Kalashnikov power, but with the affordability, reliability, and modularity you’ve come to love from Eugene Stoner’s greatest creation. Oh, and much better accuracy (sorry, AK owners). Up top is…
Putting the AK’s best attribute into a Cerakote Tungsten Gray AR-15 kit. That best attributes is, of course, the AK’s 7.62×39 cartridge. This AR-15 rifle kit provides Kalashnikov power, but with the affordability, reliability, and modularity you’ve come to love from Eugene Stoner’s greatest creation. Oh, and much better accuracy (sorry, AK owners). Up top…
Please note:We strive to provide the most accurate photographs of our product wherever possible. Due to availability limitations and supply chain constraints, slight variations of the handguard of this upper assembly may occur in the aesthetics of the skeletonizations in between the M-LOK sections. A more ergonomic and maneuverable .308 AR kit. The AR-10 platform…
The ultimate AR9 rifle, now in a convenient build kit. Chasing maximum accuracy with the 9mm cartridge was never easy — until now. We’re pairing one of the most popular AR9 upper assemblies we’ve sold with an AR build kit, allowing you to more easily complete your 16″ 9mm rifle, for less. Up top is…
Some people love classic things. Some of those classic-loving people love classic firearms. You know the type. They can list every good thing about the 1911 in alphabetical order, or tell ya all about how the M-16 used to “jam like a sumbitch.” They might even have personal experience on the matter. If you’re the…
Quality AR-15, AR-9 and AR-10 rifle kits available.
Our AR kits are packaged with everything you need to build a custom AR-15, AR-9, or AR-10/LR-308 rifle from the ground up, except for the firearm component: The stripped lower receiver (80% lowers are available as add-ons). Our build kits provide the most cost-effective way to own a quality AR-type rifle that includes only the parts you want — minus the high prices you’ll pay for a “name brand” rifle.
Why buy an off-the-shelf AR-15 and pay a premium, when you can build it yourself? Building your rifle allows you to choose only the parts and accessories you want. We make building your kit easy, too: Each kit’s upper is assembled and ready to install on your lower out of the box. All you need to do is install the included lower parts kit in your fabricated 80% lower or stripped lower receiver (sold separately). Then hit the range!
Guide: How to Install The AR-15 Lower Parts Kit
Each AR Rifle Kit Includes:
Customize your kit! Grab a sling and optic or iron sights.
Our AR15 kits aren’t just convenient. They’re equal to or greater in quality than the typical “retail rifle”. We partner with some of the nation’s top gunsmiths and manufacturers to carefully piece together each build kit, ensuring MOA accuracy and utter reliability.
All barrels are forged from MIL-B-11595 E steel (4150 or Chromoly Vanadium)
All stainless barrels forged from Crucible 416R steel, offering sub-MOA accuracy
Not sure about choosing carbon or stainless? Read the guide to AR barrels.
Some states have banned 80% lowers and certain firearm parts or rifle builds, 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 you.
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.
