308 & AR10 80 Lower
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 achieve the ability to ring steel out to 700+ 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.
Completing Your Lower Receiver
The 80% lower is a foundation of any custom AR-10-type / LR-308 build. The .308 lower itself is the key to building not only a custom rifle, but also thee route to build a rifle WITHOUT an FFL (Federal Firearm License) transfer or paperwork. According to the ATF and federal law, the 80% lower is not considered a firearm since it is only partially complete. Officially called a receiver blank, the unit requires you, the builder, to finish the last 20% of machining requirements, resulting in a 100% complete, stripped lower receiver. This is accomplished with the help of an AR-10/LR-308 Jig. The jig provides the necessary templates, depth guides, sidewalls, and tooling to get the job done.
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).
Assembling Your Lower & Final Build
There are countless manufacturers of .308-caliber AR parts on the market today. The AR-10 by ArmaLite is not included within this market. Instead, the LR-308 platform is now the platform of choice. To complete your rifle, we recommend checking out the available build kits which include a ready-to-fire upper, bolt carrier group, lower parts kit, and compatible buffer assembly with buttstock.
LR-308 80% Lower Features:
- No FFL/serialization required under federal law (state laws vary)
- No serialization required under federal law
- Minimal technical skills required to complete
- 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.
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.