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

Overview

The Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) represents a precision-engineered solution for builders seeking a large-frame platform. Designed to accept Glock 20 (10mm Auto) and Glock 21 (.45 ACP) upper assemblies, this kit provides the foundational structure for a full-size handgun build. The PF45 frame is manufactured with a reinforced polymer composition that mirrors OEM dimensions while offering the distinct advantage of an 80% completion state. Each kit includes the unfinished frame, a complete drill jig, and all necessary hardware to facilitate the finishing process. This product is intended for individuals who possess the technical skills and legal eligibility to complete a firearm for personal use.

Features and Specs

The polymer80 pf45 80% full size frame and jig kit (glock 20/21 compatible) incorporates several design enhancements over standard frames. The integrated trigger guard undercut and a beavertail extension improve ergonomics, while the textured grip panels provide a secure purchase under adverse conditions. The jig system utilizes hardened steel drill guides and alignment pins to ensure accurate machining of the three pin holes and the trigger housing pocket.

• Manufacturer: Polymer80 | Category: Frames | Compatibility: Glock 20/21 Gen3 parts
• Frame material: Reinforced black polymer with steel trigger housing rails and locking block
• Includes: PF45 frame, universal jig, drill bits, end mill bit, rear rail module, and installation hardware

• Required completion steps: Remove grip tabs, drill pin holes, machine locking block pocket, fit slide stop lever
• Accepts standard Glock 20/21 magazines, slide assemblies, and lower parts kits
• Overall length: 8.03 inches | Height: 5.47 inches | Weight: 2.9 ounces (frame only)

Who It Is For

This polymer80 pf45 80% full size frame and jig kit (glock 20/21 compatible) is designed for experienced firearm builders who require a large-frame platform for personal projects. It is suited for individuals who have prior experience with 80% frames and possess the necessary tools, including a drill press or hand drill, files, and a vise. This kit is not recommended for first-time builders due to the complexity of machining the PF45 frame pocket. The PF45 is particularly relevant for those who wish to construct a full-size pistol in 10mm Auto or .45 ACP for target shooting, hunting, or as a dedicated home defense firearm.

• Requires: Mechanical aptitude, patience, and compliance with all federal, state, and local laws
• Not compatible with Glock 17, 19, 22, or 23 frames or holsters designed for compact/subcompact models
• Recommended for builders who prefer a non-serialized frame for personal completion (where legally permissible)

Shipping and FFL

Because this product is an 80% frame that does not meet the definition of a firearm under the Gun Control Act (GCA), it may be shipped directly to your residential or business address without requiring transfer through a Federal Firearms License (FFL) dealer. However, please note that certain states, counties, and municipalities impose additional restrictions on the purchase, possession, or completion of 80% frames. It is your sole responsibility to verify that all local laws permit ownership and finishing of this product. By purchasing this item, you confirm that you are legally eligible to possess a firearm and that you will complete the frame in compliance with all applicable laws. No FFL transfer is required for this product at the time of sale, but we strongly recommend consulting with local law enforcement or a firearms attorney before ordering.