Description

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) delivers a complete foundation for building a reliable, full-size pistol from the ground up. Engineered for Glock 20 and Glock 21 models, this frame kit provides the structural core required for 10mm Auto and .45 ACP builds. Each kit includes the unfinished 80% frame, a precision drill jig, and all necessary tooling to complete the frame machining process. This is not a finished firearm, but a component that requires final machining and assembly by the end user.

Designed by Polymer80, a leader in the 80% frame category, the PF45 frame is manufactured from high-strength, glass-reinforced polymer. The kit includes the jig system that guides drilling of pin holes and removal of material in the trigger housing pocket. The frame is compatible with standard Glock 20 and Glock 21 lower parts kits, slides, barrels, and magazines, allowing builders to customize their firearm to exact specifications.

Features and Specs

• Manufacturer: Polymer80 | Category: Frames | Compatibility: Glock 20 (10mm Auto) and Glock 21 (.45 ACP) full-size models
• Kit includes: PF45 80% frame, complete drill jig with drill bits, end mill, pin punch, and assembly instructions
• Frame material: Glass-reinforced polymer with steel-reinforced locking block and rear rail system

The PF45 frame features an integrated accessory rail, ergonomic grip texture, and a beavertail design for improved recoil control. The jig system is self-aligning, reducing the risk of misdrilled holes. All required bits are included, eliminating the need for separate tool purchases. The frame accepts standard Glock 20/21 magazines and all OEM or aftermarket slides designed for large-frame Glock pistols.

Key specifications: Overall frame length is 8.1 inches, width is 1.3 inches, and weight is approximately 3.2 ounces (frame only). The trigger guard is undercut for higher grip placement. The frame is compatible with both standard and extended slide releases and magazine releases.

Who It Is For

The Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) is intended for experienced firearm builders who possess the tools and knowledge to complete an 80% frame project. This kit is suited for individuals who want to build a full-size handgun in 10mm Auto or .45 ACP without purchasing a complete factory firearm. It is appropriate for hobbyists, competition shooters, and those who prefer custom builds with specific slide, barrel, and trigger configurations.

• Builders who have previously completed an 80% frame and understand the machining process
• Shooters who want a large-frame platform for hunting, target shooting, or personal defense
• Individuals who require compatibility with Glock 20 or Glock 21 parts and aftermarket accessories

This kit is not recommended for first-time builders. The PF45 frame requires drilling of the pin holes and removal of the trigger pocket material, which demands steady hands and proper clamping. If you have experience with 80% frames, this kit offers a straightforward path to a full-size, custom pistol.

Shipping and FFL

This item is a firearm frame that is not yet a completed firearm. Per current ATF regulations, the Polymer80 PF45 80% Full Size Frame and Jig Kit (Glock 20/21 Compatible) can be shipped directly to your residence without an FFL transfer, as it is classified as an unfinished receiver. However, it is your responsibility to verify that your state and local laws permit the possession and completion of 80% frames. Some states and municipalities have restrictions on unfinished frames. We recommend consulting with local law enforcement or a qualified firearms attorney before ordering.

• No FFL transfer is required for shipment of this 80% frame kit
• By purchasing, you confirm that you are legally eligible to own and complete this frame
• You must be 21 years of age or older to purchase this product

Once you complete the frame, you must comply with all applicable federal, state, and local laws regarding firearm possession and serialization. We do not offer returns on completed frames or jig kits that have been used. Please review our full shipping policies before placing your order.