PF45 Frame Kit

Polymer 80 PF45 Frame Kit

Serialized 80% Large PF45 Frame Kit—G20SF/G21SF

Firstly, the Polymer 80 – PF45 Frame Kit is everything you need to start your large frame size Glock^® 10mm (G20SF) and .45 ACP (G21SF) build. The Polymer80 PF45 serialized frame kit includes the 80% large pistol frame, jig, and all tooling required to finish the frame using a drill press and XY cross-vise.

Additionally, you can choose between black, flat dark earth, OD green, gray, and cobalt or one of our custom cerakoted camo patterns for the PF45 frame kit. Moreover, know that features like the extended beaver tail, double undercut trigger guard, and thumb ledge considerably enhance the ergonomics, allowing for an effective grip and improved recoil mitigation.

Features of PF45 Frame

Before getting into the features, note that the PF45 is the only 80% large polymer pistol frame in the industry. It comes from strong, reinforced polymer and works with Glock® G21SF parts. Finally, it is designed for comfort; it features an improved grip with a textured surface that can be customized or modified to your liking. Below are the main features:

• The PF45 is compatible with components for 3-pin 10mm G20SF and 45 ACP G21SF.
• Next Generation Ergonomics and Features
• High-Strength Reinforced Polymer Construction
• Picatinny/STANAG Compliant Accessory Rail
• Serialization Plate with Serial Number
• Stainless Steel Locking Block Rail System (LBRS)
• Stainless Steel Drop-In Rear Rail Module (RRM)
• Hardened Pins for LBRS and RRM
• Complete finishing jig and 2 drill bits included.
• Compatible with Gen 3 Glock G20SF/G21SF slide assemblies
• Compatible with Glock G20SF/G21SF magazine

If you need a lower parts kit for the PF45, test out our OEM Glock decreased component kits.

How to Complete Your PF45 Build

To finish your PF45 frame, follow these basic steps:

1. Drill the required holes using the provided drill bits.
2. Trim excess polymer from the frame.
3. Install the rails and locking block.
4. Assemble with Glock 20 or Glock 21 parts.

Where to Buy PF45 Frame Kits

Looking for a PF45 frame kit for sale? Many online retailers offer them, but always choose a trusted supplier with good reviews and legal compliance.

Why Choose a PF45 Frame Kit?

1. Customizable & Easy to Complete

Unlike factory-made firearms, the PF45 frame gives you the freedom to customize your gun to your preferences. With simple tools and patience, you can complete your build at home.

2. Durable Polymer Construction

Made from high-strength polymer, the PF45 frame is lightweight yet durable, ensuring a comfortable grip and long-lasting performance.

3. Legal & Private Ownership

Since it’s an 80% frame, the PF45 is not classified as a firearm by the ATF (as of current laws). This means:

• No serial number is required
• No background check is needed
• You can legally complete it at home (where legal)

Compliance and Restrictions

Finally, we fully comply with all federal, state, and local laws regarding the sale of restricted products. We do not market or sell to prohibited jurisdictions, and any attempts to induce illegal activity, including by law enforcement or government agencies, will be rejected and may be reported.

All orders are subject to legal verification, and those in violation will be canceled. By using this site, you confirm compliance with all applicable laws.

See the complete lineup of Polymer 80 products and other color varieties of the PF45 frame kits. The Pf45 Frame Kit is the perfect option for those who want to build a powerful and reliable firearm.