Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible)

If you are looking to build a custom pistol from the ground up, the Polymer80 PF940Cv1™ 80% Compact Frame and Jig Kit (Glock® 19/23 Compatible) is a solid starting point. This kit gives you the foundation for a compact, reliable handgun without the need for a serialized frame from a factory. Whether you are a seasoned builder or a first-time DIY enthusiast, this kit puts the control back in your hands. It is designed to accept Glock® 19 and 23 gen 3 parts, making it one of the most versatile platforms on the market.

Overview

At its core, the polymer80 pf940cv1™ 80% compact frame and jig kit (glock® 19/23 compatible) is an unfinished frame that requires you to complete the remaining 20% of the machining work. This includes drilling the pin holes, cutting the trigger housing pocket, and finishing the frame rails. The kit comes with everything you need to get started: the polymer frame, a modular jig, drill bits, and all necessary hardware. It is a true hands-on project that lets you learn the inner workings of a pistol while building something unique to your preferences.

Features & Specs

• Manufacturer: Polymer80
• Category: Frames
• Compatibility: Designed for Glock® 19 and 23 gen 3 slide and lower parts kits
• Frame material: High-strength, impact-resistant polymer
• Includes: PF940Cv1 frame, modular jig, drill bits, pins, and detailed instructions

The polymer80 pf940cv1™ 80% compact frame and jig kit (glock® 19/23 compatible) features an integrated locking block and a stainless steel front rail system. The frame has an ergonomic grip angle and a textured surface that provides a secure hold even in wet conditions. The jig is reusable, so you can build multiple frames if you pick up additional units. The kit also includes a magazine release and a slide lock spring, though you will need to source your own slide, barrel, and lower parts kit separately.

• Integrated steel rear rail and locking block for durability
• Accepts standard Glock® 19/23 magazines
• Compact size ideal for concealed carry or range use

Who It’s For

This kit is built for anyone who wants to understand the mechanics of a pistol while building a reliable firearm. It is a great choice for hobbyists who enjoy tinkering with tools, or for shooters who want a custom compact frame without the wait or cost of a fully assembled firearm. The polymer80 pf940cv1™ 80% compact frame and jig kit (glock® 19/23 compatible) is also popular among those who prefer a non-serialized frame for personal builds. It requires basic hand tools and some patience, but the result is a functional, high-quality pistol that you assembled yourself.

• DIY builders and hobbyists looking for a weekend project
• Concealed carriers wanting a compact, custom frame
• Shooters who want to learn the internal function of a Glock®-style pistol

Shipping & FFL

Because this is an 80% frame, it is not considered a firearm under federal law and can be shipped directly to your door with no FFL transfer required. However, you must comply with all applicable federal, state, and local laws regarding the completion and ownership of unserialized frames. We recommend checking your local regulations before ordering. Once completed, the frame becomes a firearm, and you are responsible for ensuring it is legal to possess and use in your area. No background check is needed for the kit itself, but any completed firearm must comply with all laws in your jurisdiction.