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.

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How To: Installation Instructions and Product Manuals

GST-9 Help & Instructions

Click here for our GST-9 FAQ Page. Click here for the GST-9 MOD1 Instruction Manual.

For more help and tips, be sure to check out our instructional videos HERE.

Easy Jig® Gen 3 Help & Instructions

For the Gen 3 FAQ Page, click here. For the Instruction Manual, click here.

For more help and tips, be sure to check out our instructional videos HERE.

Freedom Button Kit Installation Instructions:

For step by step instructions on how to install the Freedom Button, click here.

Easy Jig GEN 2 Products

Multiplatform:

For step by step directions on our Gen 2 Mutliplatform Easy Jig Ver 3.2, click here.

Easy Jig GEN 2

Quick Reference Ver 3.4, click here.

AR15/AR9

For step by step directions on our Gen 2 AR15/AR9 Easy Jig Ver 1.6, click here.

For more help and tips, be sure to check out our instructional videos HERE.

Easy Jig Gen 2 AR15/AR9

Easy Jig Quick Reference Ver 1.6, click here.

Easy Jig GEN 1 Products

For step by step manual for our Gen 1 AR-15 and Gen 1 .308 Easy Jigs (router based), click here. Video

Easy Jig Gen 1

Click here for our Easy Jig Gen 1 AR-15 drill press jig manual.