The polymer 80% gunsmithing kit represents the newest, easiest way to build a factory-spec handgun or polymer AR-15 at home. These 80% pistol frames and 80% receivers include American-made, affordable units with the necessary jig and tooling to cut and drill your blank, turning it into a firearm that's ready for final assembly.

Available Polymer80 Pistol Kits

Polymer80 pistol kits are compatible with gen 3 Glock® components in the corresponding caliber and frame size. Select one of the available 80% frame kits or pistol build kits by Glock® platform compatibility:

  • PF940C is compatible with Glock 19, G23, and G32 handguns.
  • PF940v2 is compatible with Glock 17, G22, G24, G31, G34, and G35 handguns.
  • PF940SC is compatible with Glock 26, and G27 handguns.

Completing each frame or receiver requires drilling a few holes and removing excess polymer material using the included bits. These steps can be completed with basic hand tools (all you need is a vise, a Dremel, and some files). Little to no experience is required, thanks to easy-to-follow instructions! Once completed, simply pair your pistol frame with the appropriate Gen 3 Glock® barrel, slide, and parts kits, and hit the range in a single day.

Pistol Kit Features & Specs

  • Doesn't require an FFL to buy or own
  • 80% frame includes jig and drill bits
  • Compatible with all Gen 3 Glock® parts
  • Constructed of high-strength polymer
  • Stainless-steel Locking Block Rail System (LBRS)
  • Stainless-steel Drop-in Rear Rail Module (RRM)
  • Includes blank serialization plate

Polymer80 AR-15 and .308 80% Lowers

We're also excited to introduce polymer 80% lower receiver options for the AR-15 (5.56/.223) and .308 (DPMS Gen 1, LR-308)! If you've been wanted to shed weight and build the lightest AR-15 or .308 rifle possible, you've in the right place.

First-timer? This guide explains how to complete a polymer 80 percent lower.

These polymer lowers weigh just 0.3 pounds. Once assembled, they reduce weight by around 50% compared to traditional aluminum receivers! Our friends over at Polymer80 took the time to ensure these lowers are capable of handling high-powered rifle rounds. Many customers have already built their black rifle or pistol using polymer, to great effect.

Learn what else you need with the complete AR-15 build and parts guide.

Polymer80 Features and Specs:

  • No FFL required to buy or own
  • Includes its own 80% lower jig
  • Includes all necessary bits and tooling
  • 100% compatible with retail AR-15 parts
  • .308 lowers compatible with DPMS LR-308 platform
  • Made of high-strength, reinforced polymer

Federally Legal to Buy and Build

Polymer80's frames and lowers are not considered firearms under federal law. The ATF Recognizes these units as receiver blanks, defined as un-fabricated and non-functioning firearm parts. They do not require an FFL to buy or own, nor do they require a background check under federal law. Contrary to federal law, some states have either restricted or banned the sale, transfer, and ownership of 80% lowers, firearm blanks, and other gun parts. Because of these restrictions, we cannot ship our products to certain states. Please confirm whether your state is restricted on our Shipping & Return Policy before placing an order. We cannot fulfill orders to restricted states if placed.


Your custom build awaits.


DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 80 Percent Lowers, a/k/a Tactical Gear Heads, LLC nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.

DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.

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We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.