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80LowerJig.com: 80% Lowers, Jigs, Build Kits & More!

80 Lower Jigs

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80 Lower Jigs

The 80% lower jig is the critical other half to the 80% lower receiver. It allows you to easily cut and drill your own receiver blank, transforming it into a stripped AR-15 lower receiver at home.

Building your gun from scratch at home is 100% legal. This guide explains all the laws you need to know.

How the Jig Works

The 80% jig really just an at-home gunsmithing kit. With this mini-CNC machine and template, you can finish as many 80% lowers as you want. Jigs are designed to be reusable!

Perfect for Beginners

The best part about our jigs is how easy they are to use. You need little to no experience with power tools or gunsmithing equipment. All jigs include simple, step-by-step instructions so even first-time builders can make a lower receiver confidently and quickly.

Need help picking the right 80% jig? We compared them all here.

One Afternoon

That’s how long this project takes. The entire process can be completed in less than 3 hours! Included depth gauges measure how deep your drill bits and end mill bits should be set. All you need to do is set the depth with the guide, and let your router or drill do the rest.

Benefits of our 80% jigs:

  • Comes with step-by-step instructions
  • Easy to use with little to no knowledge needed
  • Reusable and modular, jig parts can be replaced
  • Measures every drill and milling step, no guesswork
  • Proudly made in the USA with a Lifetime Warranty
  • Completely legal to operate and machine in all 50 states

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