Pearce Frme Insrt For Gen4 Glk 21/41

The Pearce Frame Insert for Gen4 Glock 21/41 is a polymer accessory designed to seal the frame cavity of Generation 4 Glock pistols. This insert installs directly into the bottom rear cavity of the frame using the factory lanyard hole for secure retention, providing a barrier against dust and debris accumulation. Its lightweight construction—just 0.06 lbs—adds no measurable weight or handling characteristics to the pistol.

Manufactured from high-impact polymer, the insert maintains a clean, finished appearance on the frame. The compact footprint (3 x 1.5 x 4 inches) ensures a perfect fit specific to Gen4 frames without interference with holster compatibility or tactical gear setup. This insert addresses a maintenance concern for shooters who operate in sandy, dusty, or debris-laden environments.

By sealing the lanyard hole cavity, it reduces entry points for contaminants that can accumulate in the lower frame group. Glock 21 and 41 operators, particularly those running full-size or competition configurations, will appreciate this practical upgrade. The insert is designed to work with or without factory interchangeable backstraps, enhancing its versatility.