Polymer80 PF940C 80% Compact Pistol Frame Kit

The PF940C is an 80%-style compact pistol frame for Gen 3 Glock 19 builds, cut for a standard locking block and striker-fired parts. Weighing in at 5.8 oz, this reinforced polymer frame ships with a jig, drill bits, and rear rail module — you’ll need to source a slide, barrel, and LPK separately. The trigger guard is undercut for a higher grip, and the front strap has aggressive texturing where it counts.

This P80-pattern frame uses a proprietary rail system (not Glock OEM) but accepts aftermarket Gen 3 slides without modification. The PF940C’s grip angle sits between a 1911 and a stock Glock, and the beavertail keeps your hand clear of the slide. Frame dimensions match OEM width for holster compatibility, though some light sanding may be needed for a perfect fit with certain aftermarket parts.

Currently legal in most states as an unfinished receiver — verify your local + state law. The PF940C ships as a raw blank with no serial number or markings. Drill press or router required to complete; we recommend a 3/8″ bit for the front pin and 5/32″ for the rear.