Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible)

Overview

Whether you are building a dedicated hunting sidearm in 10mm Auto or a heavy-hitting .45 ACP for the range, the Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) is the foundation you need. This complete kit gives you the frame, jig, and all necessary tooling to finish a serial-number-free frame from an 80% blank. The PF45 platform is designed specifically for full-size Glock 20 and Glock 21 slide assemblies, giving you the comfort of a full grip and the reliability of the Polymer80 aftermarket ecosystem. If you have been looking for a hands-on project that results in a custom pistol tailored to your hands, this is your starting point.

Features & Specs

The Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) comes packed with everything you need to complete your build. The frame itself is made from a high-strength polymer composite that resists impact and maintains rigidity under recoil. The integrated jig system guides your drill and router to ensure precise alignment of the trigger housing pin holes, the locking block pin holes, and the front rail channel. Below are the key specifications and what you will find in the box.

• Manufacturer: Polymer80 — trusted name in the 80% frame market for over a decade
• Category: Frames — compatible with Glock 20 (10mm) and Glock 21 (.45 ACP) full-size slide assemblies
• Kit includes: one 80% PF45 frame, one universal jig, three drill bits, one end mill, one punch, and all necessary pins and springs
• Frame material: reinforced polymer with a textured grip surface for positive control in wet or dry conditions

Because the frame is 80% complete, you will need to finish the three pin holes and the front rail channel using the included jig. The process is straightforward for anyone comfortable with basic hand tools and a drill press or hand drill.

Who It Is For

This kit is ideal for the home builder who wants a full-size pistol platform without the paperwork of a serialized receiver. If you are a 10mm enthusiast who wants a dedicated woods gun, or a .45 ACP shooter who prefers the ergonomics of a full-size frame over a compact, the Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) gives you that flexibility. It also suits the hobbyist who enjoys the mechanical challenge of finishing an 80% frame and learning the inner workings of a Glock-style pistol. Whether you are building your first 80% project or adding to a collection, this frame is built for the hands-on shooter who values customization and self-reliance.

Note: Because this is an unfinished frame, it does not require an FFL transfer at the time of purchase. You will receive it directly to your doorstep. However, once you complete the frame, it is your responsibility to understand and comply with all federal, state, and local laws regarding the final assembly and possession of a firearm.

Shipping & FFL

We ship this product directly to your home address with no FFL transfer needed. Because the Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) is legally considered a non-firearm component, it does not require background checks or dealer involvement at the point of sale. However, please be aware of the laws in your state and municipality. Some states and localities restrict the purchase, possession, or finishing of 80% frames. It is your responsibility to ensure compliance with all applicable laws before ordering. We do not ship to P.O. boxes or APO addresses. Standard ground shipping is used for this kit, and tracking information will be emailed once the order is processed. If you have questions about your specific jurisdiction, we recommend consulting a local attorney or firearms dealer before completing your purchase.