A completed slide (upper) and barrel are added to finish the build. Common Use Cases: 10mm vs. .45 ACP PF45 (G21.45 ACP) P80 Build Overview and Range Test
Once machined, users install a lower parts kit (LPK), including the trigger housing, trigger bar, and connector. pf45-80
Features a stainless steel locking block rail system (LBRS) and a stainless steel rear rail module (RRM). A completed slide (upper) and barrel are added
The (Polymer80 PF45) is a high-strength, reinforced polymer 80% pistol frame designed for "large frame" builds. It serves as a customizable foundation for enthusiasts to build their own handguns compatible with Glock 20SF (10mm Auto) or Glock 21SF (.45 ACP) slide assemblies and magazines. Key Features and Specifications Features a stainless steel locking block rail system
Often cited for better ergonomics than original Glock frames, including a "rakish" grip-to-frame angle and improved finger grooves. The 80% Build Process