Polymer80 PF45 80% Pistol Frame ONLY | Polymer80
About this product
The Polymer80 PF45 is an 80% pistol frame designed for builders who want a large-format, polymer-based platform for .45 ACP or 10mm builds. This frame-only kit provides the foundation for a custom, serialized-at-home firearm, offering significant design flexibility. It has been a consistent seller on our shelves since early 2026, with a low return rate indicating customers know exactly what they’re getting.
Key Highlights
- Designed for large-caliber builds: Compatible with .45 ACP and 10mm Glock® Gen 3 components.
- 80% completion state: Requires milling and drilling to finish, intended for personal manufacturing.
- Enhanced ergonomic grip: Aggressive texturing and undercut trigger guard for improved control.
- Reinforced polymer construction: Built with durability in mind for a robust large-frame pistol.
- Jig and drill bits included: Provides the necessary tools to complete the frame correctly.
Product Details
| Manufacturer | Polymer80 |
| Model | PF45 |
| Type | 80% Pistol Frame Only |
| Caliber Compatibility | .45 ACP, 10mm (Glock® Gen 3) |
| Frame Material | Reinforced Polymer |
| Weight (measured) | 3.7 oz |
| Includes | Frame, Jig, Drill Bits, Pins |
| Finish State | Unfinished, Requires Machining |
What Buyers Ask
What tools are needed to complete this frame?
You will need a hand drill or drill press, a Dremel tool or milling machine with router bits, and basic hand tools. The included jig guides the critical drilling and milling operations. Proper vise mounting is essential for clean results.
Is this compatible with Glock 21 or Glock 20 slides?
Yes. The PF45 frame is designed to accept aftermarket and OEM slides, barrels, and internal parts kits for the Glock 21 (.45 ACP) and Glock 20 (10mm) models, specifically Generation 3 patterns. Always verify parts compatibility before purchase.
Why do customers often buy more than one?
This is one of our most-reordered items. Builders frequently return for a second frame to create a companion build in the other caliber (e.g., one in 10mm and one in .45 ACP) or to have a spare for future projects, given the platform’s versatility.
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Specs at a glance
What's in the box
- Polymer80 PF45 80% Pistol Frame ONLY | Polymer80