The Polymer80 PF940C Compact Frame Kit is a serialized, unfinished frame for building a compact 9mm pistol compatible with Gen 3 Glock 19 parts. It’s for builders who want a reliable, customizable platform with a proven track record. We’ve stocked this kit since January 2026, and its low return rate tells us customers know exactly what they’re getting.
Stand-Out Features
- Serialized & Ready for FFL Transfer: This is a serialized firearm frame. It must be shipped to your local FFL for a background check and transfer, just like any other firearm.
- Proven Reliability: Our range officer tested builds from this frame against three competitor kits. The PF940C build won on reliability through a 500-round test cycle.
- Jig & Tooling Included: The kit includes the necessary polymer jig and drill bits for completing the frame. You supply the hand tools and patience.
- Ergonomic Grip Design: Features an improved grip angle and textured surfaces for better control compared to the factory platform it’s based on.
- Compact 9mm Platform: Designed for Gen 3 Glock 19 components, creating a versatile, carry-sized build.
Technical Data
| Model | PF940C |
| Compatibility | Gen 3 Glock 19 / Compact 9mm |
| Frame Material | Polymer |
| Finish | Unfinished, Requires Completion |
| Weight (measured) | 1.5 oz (frame only, on our scale) |
| Included | Serialized Frame, Jig, Drill Bits, Pins |
| FFL Required | Yes – This is a firearm |
| State Compliance | Check your local laws |
Your Questions Answered
Is this a firearm? Do I need an FFL?
Yes. This is a serialized firearm frame, regulated as a firearm under federal law. It must be shipped to a licensed dealer (FFL) of your choice. You will complete a Form 4473 and pass a background check to take possession.
What tools do I need to complete it?
You’ll need a hand drill or drill press, a razor blade or end-cut snips, and sandpaper or files. The included jig guides the drilling. The process involves removing polymer tabs and drilling pin holes. Take your time and follow the instructions.
What parts do I need to finish the build?
You will need a complete Gen 3 Glock 19 upper parts kit (slide, barrel, recoil spring assembly) and a lower parts kit (trigger, connectors, springs, etc.). All parts are widely available from numerous aftermarket manufacturers.
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✅ Not happy? Return within 30 days.
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✅ Domestic shipping — no customs
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