Polymer 80 PF45 80% Full Size Pistol Frame Kit for Glock 20 21 Compatible

The Polymer 80 PF45 80% Full Size Pistol Frame Kit in Black offers the industry's only 80% Large Polymer Pistol Frame with enhanced ergonomics and features, built from high-strength reinforced polymer to accept Glock G21SF components for a reliable, customizable platform. It features an aggressive, adaptable grip texture that supports custom stippling and modification, a Picatinny/STANAG compliant accessory rail, and a blank serialization plate for a clean, unfinished look that still ships complete with a stainless steel locking block rail system (LBRS) and a stainless steel rear rail module (RRM, with hardened pins for LBRS and RRM. This kit also includes a complete finishing jig and drill bits, and is designed for compatibility with Gen 3 Glock G20SF/G21SF slide assemblies and magazines, enabling a strong, precise fit with proven Glock-compatible parts. The PF45 frame is designed for robust field use and precision builds, delivering the benefits of Polymer 80's trusted manufacturing while allowing tailored ergonomics and performance enhancements. Patent Pending.