GLOCK GEN 4 : PG-G4SC
GLOCK Sub Compact Size Model Grip Frame Insert Gen 4&5
This unit installs in the bottom rear cavity of the frame utilizing a friction fit for retention. Fits model 26, 27 and 33. This product will only fit Generation 4&5 frames. Allows for use of factory interchangeable backstraps.
Helps keep debris out of the magazine well.