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cc-settings-icon BUILD AT HOME
80% Arms sells AR-15 and .308 80% Lower Receivers, 80% Lower Jigs and other accessories which allow you to legally build a firearm at home in most states.
cc-gun-icon INCREDIBLY PRECISE
We utilize state of the art 5-axis CNC machines to mill all our .308 and AR-15 80 percent lower receivers to incredibly precise tolerances using premium billet aluminum.
cc-hand-icon RIDICULOUSLY EASY
We also offer our patented AR-15 and .308 Easy Jigs® which is the first 80% lower jig that makes it ridiculously easy for a non-machinist to finish their 80% lower.
cc-thumbs-icon 100% SATISFACTION GUARANTEED
Products manufactured by 80% Arms carry a lifetime warranty against manufacturing defects. We will promptly replace or repair any product that we determine to be defective.

80% BLOGS

How Does Night Vision Actually Work?

How Does Night Vision Actually Work?

80 Percent Arms | Mar 16th 2022

If you've ever played Tom Clancy’s Splinter Cell video game or the first mission of Call of Duty (4): Modern Warfare you've gotten a small taste of what using night vision is like. Well, how wou...
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Best Glock Barrels Guide

Best Glock Barrels Guide

80 Percent Arms | Dec 6th 2021

Whether you’re upgrading your barrel or building a new Glock style 80% frame, it’s going to involve a new barrel. Question is, which one do you get? The answer may not be as apparent as yo...
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What AR-15 Barrel is Best?

What AR-15 Barrel is Best?

80 Percent Arms | Jan 7th 2021

If you're asking yourself, "how do I choose an AR-15 barrel," then you've come to the right place. Whether you're building an 80% lower or your old barrel fails you, searching for a new AR-15 barre...
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What is MLOK, and why do I need it?

What is MLOK, and why do I need it?

80 Percent Arms | Jun 16th 2020

The M-LOK Rail System With any product already on the market, the drive and need to create better versions of these products is always there. Vehicles, for example, have come a long way from the For...
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How Does Night Vision Actually Work?

Best Glock Barrels Guide

What AR-15 Barrel is Best?

What is MLOK, and why do I need it?
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