cc-settings-icon 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.
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.
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.
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.

80% Glock

At 80 Percent, Glock Pistol products are always available

If you’re looking to build a new 80%, Glock® platform based builds are an extremely popular choice. Our Glock® parts compatible pistol lowers are easily finished at home with tools you likely already have available, and no special skills or experience are required. Every 80% Glock®-compatible pistol will universally accept all OEM and aftermarket Glock® Generation 3 components, so you can customize your perfect Glock®-compatible build.

80% Glock compatible parts allow you to build your own G17- or G19-style handgun without having to deal with the red tape involved in most firearm transactions. All of our 80% Glock compatible lower kits are made with precision materials that are compatible with aftermarket and factory Glock components that allow you to build your own firearm at home.

Why build a Polymer 80% Pistol?

Plenty of reasons! Whether it’s a project for fun, for self-defense, or to ensure your Second Amendment rights, there are an abundance of reasons on why you might want an 80 percent Glock kit:

NO Registering an 80% Lower NO FFL Required, Ships right to your door 
NO Transfer fees like a typical firearm     


Finished lower receivers and frames are considered a handgun under FFL laws, but 80% lowers and frames are not since they are non-functional. They are also not considered a firearm under federal law or the ATF. So, you can order the separate components to construct your own Glock style frame without going through the paperwork and waiting periods associated with finished handguns. 

As far as manufacturing and build go, our aftermarket 80% Polymer Glock compatible lowers are ultra-light and made out of quality weapons-grade polymer, and are the most affordable 80 lower on the market.

Choosing the Right Polymer Eighty Percent Pistol:

Whether you’re looking for a carry gun, a race gun, or a pistol that can do-it-all, we offer multiple different polymer 80% pistol sizes to fit everyone's needs. Not sure which size you want, or which is best for you? Learn about Glock sizing here. Want to learn more about Glocks® and how you can customize them? Check out our blog articles!

What Comes With a Glock Lower Parts Kit?

The Glock lower parts kit contains everything you need to build your Glock at home:

  • Trigger Assembly

  • Ejector 

  • Slide Lock Lever

  • Trigger Housing & Connector

Are 80% Glock Style Pistols Legal?

While there are no federal restrictions on 80% Glock compatible guns, there may be state laws legislating their legality. Be sure to check your state’s laws concerning 80% Glock style pistols.

Whatever you choose, all products are backed by a lifetime guarantee!


*Glock® is a trademark of Glock Inc. Some components on our site are genuine Glock® OEM components, while other parts including our 80% lowers are aftermarket parts which are not produced by or endorsed by Glock Inc. Aftermarket and OEM products are clearly marked to avoid confusion.