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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.

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Best RMR Sight for Handguns

Best RMR Sight for Handguns

80 Percent Arms | Jul 28th 2023

Whether you're a veteran shooter or a newcomer to the world of handguns, the concept of a pistol sight probably isn't foreign to you. More than just a fad, RMR sights have been steadily climbing th...
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Holosun vs Aimpoint - Which is better?

Holosun vs Aimpoint - Which is better?

80 Percent Arms | Jul 11th 2023

Technology within the wide world of firearms has taken leaps and bounds with the advancements made in rifle sighting equipment. Convenience plays a vital role as a new standard for optics, especially...
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Should I get a fluted barrel?

Should I get a fluted barrel?

80 Percent Arms | Jan 17th 2023

Yes! Maybe.. The truth is it depends on if the barrel you're looking for is for a rifle or a pistol. The short of it is that if it's for a pistol, you're probably safe to go for it! If your new b...
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Which handguard for AR15?

Which handguard for AR15?

80 Percent Arms | May 18th 2022

Ready to build your AR-15 from an  80% Lower? Collecting the parts required can seem like a daunting task! This time let’s focus on the AR handguard as there are so many available options!...
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Five Firearms Coatings You Need to Know About

Five Firearms Coatings You Need to Know About

80 Percent Arms | May 10th 2022

In the early days of mass firearm production muskets, pistols and early rifles had two popular and distinctive coatings used to protect the metal components from external destructive factors (mainly r...
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