AR10 vs AR15 Parts Compatibility
Calling all AR fans — if you’re a builder like us, you’re probably constantly thinking about the next rifle setup you
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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.
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.
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 in under 1 hour with no drill press required.
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.
AR 40 Build Guide
Are you a fan of .40 cal? So are we! Let’s face it, if it goes pew, chances are we’re going to like it. During the hei
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Best AR 15 Charging Handle
Do AR charging handles make a difference? Yes! They certainly can. The stock mil-spec charging handles that come with an upper recei
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How to Build an AR10
There’s only a few reasons a person would want to have an AR-10 rifle: they’re planning on doing some long range, precision
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Should I Cerakote My AR?
If you have found an aftermarket service that can cerakote your AR-15 for an affordable price, then by all means go for it! Cerakote is
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AR9 LRBHO — Explained
What is ‘LRBHO?' The acronym stands for ‘
last round bolt hold open,’ which is the function that keeps the bolt carrier group with
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