JSD 80% Lower Receivers, Jigs, and Gun Parts Kits

80% lower build kits are used to create fully functional firearms with no registration or serial numbers required. Build a reliable pistol or rifle in your own garage with absolutely no paperwork. Find the parts and tools you need here at JSD supply.

Drill into your next 80% lower

Start by Choosing a Category here:

How to Finish an 80 Percent Lower Receiver as a Functional Firearm

If you’re handy with simple tools and can follow basic instructions, you can turn an 80 lower receiver into an effective and reliable firearm with a few hours of work. To finish them precisely, you’ll need a drill press or power drill, a router jig, a vise, and other components included in the gun parts kit.

80 percent lowers are manufactured solid in key areas to ensure quality and meet legal obligations. Guided by one of our completion jigs, you’ll drill out the space for the firing mechanisms and other vital components. The amount of drilling needed will depend on the model and type of firearm you are preparing. Once the receiver has been prepared, follow instructions for assembly. It’s a great chance to see the ins and outs of your gun and learn how everything works.


Why Build Your Own Gun?

With any other guns, you go to the gun store, fill out a bunch of forms. They’ll run a background check, and depending on your state, you could wait awhile.

With JSD Supply, you’ll have the 80 percent lower receiver and all the parts you need to finish a firearm yourself shipped to your door. No paperwork. And without serialization, there is no way to track your purchase. Buy from a supplier that respects your privacy and can actually help you protect it.

Is it Legal?

Absolutely. It is legal to build your own firearm for personal use in most US States so long as you can legally own a firearm. Always check local laws for your area. Rhode Island and New Jersey recently passed laws that may restrict the purchase or assembly of unserialized firearms.

80 percent lower receivers are parts manufactured just short of the legal definition of a firearm by the Bureau of Alcohol, Tobacco, and Firearms (ATF).

Some US States have additional regulations for firearms once they are completed, including California, Rhode Island, and New Jersey. Be sure to identify and comply with all local laws prior to your purchase.

Why Source with JSD Supply?

JSD is the home of quality gun parts and kits. We know they work because we use them. And if they don’t work for you, we’ll refund or replace them. It’s that simple.

We’re here to support you through the ultimate DIY project. All products are guaranteed, and we have some of the quickest shipping times in the industry. Start with just the parts you’re looking for here with us online, or order a complete build kit for all the parts and tools you’ll need from start to finish.

We Stand by our Buyers

Latest News

Making Your Voice Heard About The Ghost Gun Ban

Is It Easy To Build An 80% Lower?

The Future Of Ghost Guns

A Review of 80% Lower Laws