Pearce Grips PG-FI20SF Frame Insert for Glock Model 20SF/21SF Grip Frame Insert For Glock 20 and 21 Short Frame (Only),Black
This unit fits in the bottom rear cavity of a Glock 20 and 21 SHORT FRAME utilizing the lanyard hole to secure it to the frame. These grip frame inserts will not fit a Generation 4 frame nor a standard Glock 20 or 21 frame