80% Lowers

What is an 80 Percent Lower Receiver?

An 80% Lower Receiver, sometimes called “80 lowers” or “a paperweight”, are AR-15, .308, or AR-9 lower receivers that are 80% finished in the machining process. There’s still a small amount of finishing to be done to make these products a legal firearm. This is important because the ATF does NOT recognize an 80% complete lower as a firearm, and therefore is not subject to the same regulations as any other complete firearm. This means, no RED TAPE including:

NO Registering an 80% Lower   NO Transfer fees like a typical firearm   
NO FFL Required, Ships right to your door   

Best 80% Lowers in the Industry

We build our lowers better than the rest. We use premium 6061-T6 aluminum and inspect all of our 80 percent lowers to the highest industry standards. They are all made right here in the USA to the most demanding specifications in the industry. 

All our lowers include Fire and Safe engravings and are fully compatible with all milspec products across the AR-15, .308, and AR-9 platforms. That means you can choose your favorite upper assemblies and accessories to build your perfect rifle!  

Build Your Own Firearm with 80% Arms

All our 80% lowers are milled to perfection on precision CNC machinery, manufactured here in the USA. We create the world’s best 80 percent lowers, perfect for completing at home with one of our industry-leading router jigs. In fact, we are the first company in the world to offer the simplistic router jig that revolutionized the industry. 

Ready to get started? Browse our selection of 80 lowers above. Have any questions about our products? Give us a call at (949) 354-2767 [ARMS] or contact us and we’ll help you get started today!

We stand by all our products with a lifetime guarantee!

 

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