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80 Lower Jig

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80 Lower Jig

Ready to become an at-home gunsmith? Build an AR-15 with your own tools and know-how? Then you need an 80 Lower Jig! The jig is the critical “other half” to the AR build project — alongside the 80% lower. If you don’t already have one, we suggest starting here: All these lowers are compatible with our jigs!

How does an 80 lower jig work?

The 80 lower jig allows you to quickly, legally, and safely complete your 80 lower, transforming it into a stripped receiver. That means drilling a few holes and milling out the fire control cavity — the area where your trigger and lower parts kit will be installed.

The whole process takes around 1 to 2 hours for first-timers, though expert builders can get it done in 15 minutes or less. Want to go fast? Get your hands on the Router Jig PRO.

No FFL is required to own or use a jig

The ATF says it’s legal to build a firearm at home (for personal use, not for re-sale) with no FFL or other paperwork required. That means we can ship everything you need to build your AR right to your front door.

That also means you don’t have to pay any extra fees or special taxes, you don’t have to deal with pages of paperwork, and you don’t need to submit to any background checks.

The same rules apply to the 80 lower! They’re not considered firearms, either. The ATF classifies them as “receiver blanks“.

Want to make it easy on yourself? Check out the Easy Jig Gen 1 Combo Kit. It includes the most popular (and most affordable) jig on the market, and you get a quality, forged 80% lower.

Why the 80 Lower Jig rocks:

  • No FFL is required for ownership or use
  • No drill press required – only a hand drill!
  • Completes a lower in 15 minutes to 2 hours
  • Includes required drill bits and end mill bit
  • All available jigs are compatible with our lowers!
  • Replaceable parts available so you can keep building


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