Pearce Grip Frame Insert For Glock Gen4 20 / 21 / 41 – Polymer Plug (PG-FI21G4)

• Frame insert designed to fit Glock Generation 4 models 20, 21, 40, and 41
• Installs in bottom rear cavity of frame using lanyard hole for retention
• High impact polymer insert helps keep out dust and debris from frame cavity
• Designed for use with or without factory interchangeable backstraps on Gen4 frames
• Friction retention using lanyard hole provides secure fit during firearm handling
• Pearce Grip model PG-FI21G4 with UPC 605849200101; color black insert

The Pearce Grip Frame Insert PG-FI21G4 is a frame insert designed for sealing the rear cavity of Glock Gen4 20, 21, 40, and 41 pistols.

The Pearce Grip Frame Insert PG-FI21G4 installs into the bottom rear cavity of compatible frames using the integrated lanyard hole for retention. This frame insert is constructed from high impact polymer and is designed to block dust and debris from entering the grip cavity. It fits Glock Generation 4 models 20, 21, 40, and 41 and supports use with or without factory interchangeable backstraps. The black finish aligns with standard frame coloration. This model fills the open cavity to create a uniform grip base structure. This product is used for protecting internal grip space and maintaining a finished frame appearance in standard configurations and field handling conditions.