Pf45-80 ⟶ < FAST >

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

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

Features a stainless steel locking block rail system (LBRS) and a stainless steel rear rail module (RRM). pf45-80

Designed for Gen 3 large-frame Glock components.

The term "80%" refers to the frame's manufacturing state; it is not considered a firearm by federal standards until the user machines specific areas. The (Polymer80 PF45) is a high-strength, reinforced polymer

Once machined, users install a lower parts kit (LPK), including the trigger housing, trigger bar, and connector.

The PF45 frame is distinct from standard full-size frames (like those for the G17 or G19) due to its larger dimensions and specialized internals. Common Use Cases: 10mm vs

Builders use a provided finishing jig and drill bits to remove excess material and drill pin holes.