The Polymer80 PF45 80% Frame Kit is a large-format polymer frame designed for builders working on 10mm Auto or .45 ACP platforms. This kit provides the foundation for a custom pistol build, requiring machining and assembly to complete. It’s become one of our steady sellers in the 80% category since we started stocking it in Q1 2025. We’ve had zero warranty claims on this product in over a year of selling it.
Stand-Out Features
- Large-Format Platform: Engineered specifically for the power and size of 10mm and .45 ACP cartridges.
- Reinforced Polymer: Durable construction with integrated metal locking block rails for long-term reliability.
- Ergonomic Grip: Aggressive texturing and a comfortable grip angle modeled after the classic 1911.
- Jig-Included Design: Comes with the necessary jig to guide the milling and drilling process for completion.
- Serial Number Area: Includes a flat, smooth surface for applying a serial number if required by law upon completion.
Technical Data
| Model | PF45 |
| Caliber Compatibility | 10mm Auto, .45 ACP |
| Frame Material | Reinforced Polymer |
| Weight (measured) | 6.5 oz |
| Finish | Matte Black |
| Includes | 80% Frame, Jig, Drill Bits, Pins |
| Completion Required | Yes (Milling/Drilling) |
| Grip Style | Aggressive Texturing |
Your Questions Answered
What parts do I need to complete a functional pistol with this frame?
You will need a compatible slide, barrel, recoil spring assembly, lower parts kit (LPK), and a magazine. The PF45 frame is designed for large-frame Glock®-style parts (G20/G21). Always verify parts compatibility before purchase.
Is this legal to purchase and ship to my state?
It is the buyer’s responsibility to know and comply with all federal, state, and local laws regarding 80% frames and homemade firearms. We only ship to jurisdictions where this product is legal. Restrictions apply in several states.
What tools are required to finish this 80% frame?
Basic completion requires a hand drill or drill press, a vise, and a router or Dremel tool with milling bits. The included jig guides the process. Proper safety equipment and machining knowledge are essential.
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