PF45™ Large Frame. The industry’s only 80% Large Polymer Pistol Frame offers our enhanced ergonomics and features. Built with high-strength reinforced polymer construction, the PF45™ compatible with Glock® G21SF components. It is available with our aggressive standard grip texture which also allows custom stippling and modification.

PF45 80% LARGE FRAME KIT BLACK. The industry’s only 80% Large Polymer Pistol Frame offers our enhanced ergonomics and features. Built with high-strength reinforced polymer construction, the PF45™ is compatible with Glock® G21SF components.

The Polymer80 PF45 Full Size 80% Pistol Frame offers enhanced ergonomics and features. Built with high-strength reinforced polymer construction, the PF45 comes with everything necessary to machine a Gen 3 Glock 20SF/21SF-compatible pistol frame.

We would like to introduce Polymer80’s PF45™ 80% pistol frame. This larger-sized frame is compatible with Glock® components for Gen 3 3-pin: 10mm and .45 acp (G20 and G21). Finish your build with G20/G21 parts kits! This frame features an extended beavertail and thumb ledge for better control.

The industry’s only 80% Large Polymer Pistol Frame offers Polymer80's enhanced ergonomics and features. Built with high-strength reinforced polymer construction, the PF45 is compatible with Glock G20SF and G21SF components. It is available with an aggressive standard grip texture which also allows custom stippling and modification.

We would like to introduce Polymer80's PF45™ 80% pistol frame. This larger-sized frame is compatible with Glock® components for Gen 3 3-pin: 10mm and .45 acp (G20 and G21). Finish your build with G20/G21 parts kits! This frame features an extended beavertail and thumb ledge for better control.

The Polymer80 – PF45 serialized frame kit includes the 80% large pistol frame, jig, and all tooling required to finish the frame using a drill press and XY cross-vise. Choose between Black, Flat Dark Earth, OD Green, Gray, and Cobalt or one of our custom cerakoted camo patterns.

Polymer80's PF45 80 percent Pistol Frame offers compatibility with Glock 20/21 Gen3 components, and is an industry first. Features such as the extended beaver tail, double undercut trigger guard, and a thumb ledge considerably enhance the ergonomics allowing for an effective grip and improved recoil mitigation.

PF45™ Large Frame. The industry’s only 80% Large Polymer Pistol Frame offers our enhanced ergonomics and features. Built with high-strength reinforced polymer construction, the PF45™ compatible with Glock® G21SF components. It is available with our aggressive standard grip texture which also allows custom stippling and modification.

PF45 80% Frame Features. Includes Locking Block Rail System and Rear Rail Module; Compatible with G20 and G21SF; Caliber: 10mm and .45acp; Integrated Trigger Guard; Improved ergonomics and finish; Reinforced, hardened polymer; Factory-style grip texture