Polymer80 80% Pistol Frame Kits, Grip Modules, & PF-Series Complete Handguns. 80% Pistol Frame Kits . PF-Series™ Handguns . PF320PTEX™ MCK & Stabilizer Kits . PF320 Handguns . Back. Back to Top . Sign Up for Our Newsletter. Subscribe . Known as the first company to develop an 80% Polymer Handgun Kit, P80 has since began manufacturing ...