The Jentra JP4 Grip Frame Insert Plug for (GEN 1-3) Glock models 20SF, 21SF. Please note: Due to varying tolerances in these specific models fitment may vary.
The Jentra JP4 Grip Frame Insert Plug is designed to close the open cavity at the bottom of the grip, not allowing debris to enter and reach trigger assembly and firing pin. This plug utilizes the lanyard hole for retention. Used by LE & military worldwide.