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

Overview

This Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 compatible) provides a complete foundation for building a full-size .45 ACP or 10mm pistol. Designed for users who want to complete a firearm frame from an unfinished blank, this kit includes the frame, jig, and essential tooling. The PF45 platform is engineered to accept OEM and aftermarket Glock 20 and Glock 21 slide assemblies, barrels, and lower parts kits. For those seeking a polymer80 pf45 80% full size frame and jig kit (glock 20/21 compatible), this product delivers the necessary components to mill and assemble a working frame at home.

Features and Specs

The frame is manufactured from reinforced polymer with a textured grip surface for positive control. The integrated jig system guides the user through precise material removal for the trigger housing pocket, slide rails, and pin holes. This polymer80 pf45 80% full size frame and jig kit (glock 20/21 compatible) includes all required drill bits and end mills for the completion process.

• Frame material: Reinforced polymer with steel locking block insert
• Compatibility: Glock 20 (10mm) and Glock 21 (.45 ACP) slide assemblies and lower parts kits
• Jig system: Reusable fixture with indexed drill guides for pin holes and rail cuts
• Kit contents: PF45 frame, jig block, drill bits, end mill, 3mm pin punch, instruction manual
• Manufacturer: Polymer80
• Category: Frames

The PF45 frame features an integrated recoil spring channel, full-length dust cover, and standard Glock-style accessory rail. The jig is designed for single-use material removal with hand tools or a drill press. All components are made in the USA.

• Frame finish: Textured black polymer with no serial number markings
• Slide rail system: Steel rear rail module and front locking block included
• Required tools: Hand drill, 3/32″ pin punch, hammer, sandpaper (120-400 grit)

Who It’s For

This kit is intended for individuals who wish to legally manufacture a firearm for personal use, not for commercial resale. It is suitable for experienced builders familiar with 80% frame completion, as well as intermediate users who can follow detailed instructions. The polymer80 pf45 80% full size frame and jig kit (glock 20/21 compatible) appeals to shooters who want a full-size platform for 10mm or .45 ACP without purchasing a complete factory pistol. It is not recommended for first-time 80% builders due to the larger frame dimensions and increased material removal requirements.

• Users with hand tool experience and basic mechanical aptitude
• Those who need a frame compatible with Glock 20/21 holsters and magazines
• Builders seeking a 1911-style grip angle in a polymer frame

This product is designed for personal manufacture only. The frame is not a firearm and does not require an FFL for transfer at this stage. You must verify that your local, state, and federal laws allow possession and completion of 80% frames before purchasing.

Shipping and FFL

This Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 compatible) ships directly to your residence or business address. No Federal Firearms License (FFL) transfer is required for this product because it is not classified as a firearm under federal law. However, once you complete the frame by machining the fire control cavity and installing parts, you become the manufacturer and must comply with all applicable laws, including the prohibition on manufacturing firearms for sale or distribution without a license. Some states and localities restrict or prohibit the possession or completion of 80% frames. It is your responsibility to check and comply with all laws in your jurisdiction before purchasing. By completing this purchase, you confirm that you are legally eligible to possess and manufacture firearms.