P80 PF45 Complete Kit – FDE: Build Your Own .45 ACP Powerhouse
Engineered for the dedicated builder seeking a full-size, high-caliber platform, the Polymer80 PF45 Complete Kit delivers everything you need to craft a custom .45 ACP or 10mm pistol. This FDE (Flat Dark Earth) kit is designed for enthusiasts who demand the satisfaction of a personal build with the robust performance of a large-frame handgun. The kit includes a precision-machined polymer frame, a serialized rear rail module (RSM), and all necessary Jig & Tooling components for a successful build, offering a deeply rewarding project that results in a formidable firearm tailored to your grip and style.
| SKU | P80-CKIT-PF45-FDE |
| Caliber Compatibility | .45 ACP / 10mm (Glock 20/21 Gen3 parts compatible) |
| Frame Material | Reinforced Polymer |
| Frame Finish | Flat Dark Earth (FDE) |
| Included Components | 80% Frame, Jig, Drill Bits, Rails, Pins, Locking Block |
| Required for Completion | Glock-compatible LPK, Slide, Barrel, Magazine (Not Included) |
| Tool Requirement | Hand Drill or Drill Press, Hand Tools (Allen Wrench, Punch Set) |
Is this kit legal to purchase?
Yes, the Polymer80 PF45 is an 80% frame kit and is legally considered an unfinished piece of polymer, not a firearm, under federal law. It is shipped directly to your door with no FFL transfer required. However, you are responsible for knowing and complying with all state and local laws regarding the possession and manufacturing of firearms. Some jurisdictions have specific restrictions or bans on such items.
What tools and parts do I need to finish it?
This is a complete frame kit, supplying the frame, jig, rails, and all necessary drill bits and pins. To complete a functional firearm, you will need to source a Glock 20/21 Gen3 compatible parts kit (Lower Parts Kit), a complete slide assembly (slide, barrel, recoil spring), and magazines. For tools, a hand drill or drill press, a hobby vise, and basic hand tools like a hammer, punch set, and files are essential for precise milling and assembly.
How difficult is the build process?
The PF45 build is a challenging and rewarding project suited for builders with some mechanical aptitude. The process involves precisely drilling pin holes and milling the frame cavity using the provided jig. While detailed instructions are included, it requires patience, attention to detail, and proper tool use. We recommend first-time builders thoroughly review instructional videos and guides before beginning. The result is a deeply personalized firearm built by your own hands.
What is the benefit of an 80% build?
Building from an 80% kit like the PF45 offers unparalleled customization and a profound understanding of your firearm’s mechanics. You control the final fit, feel, and component selection, creating a pistol uniquely suited to your hand and purpose. It bypasses the traditional FFL process for the frame itself (where legal) and provides the immense satisfaction of craftsmanship, resulting in a reliable, large-format pistol built to your exact specifications.
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