The Pearce grip frame insert fits in the bottom rear cavity of a Glock Gen4 Mid & Full Size utilizing a friction fit to secure it in the frame. It helps keep debris out of the magazine well. Compatible with Glock Gen4 & Gen5 17/18/19/22/23/24/31/32/34/35/37/38/44/45. Allows for use of factory interchangeable backstraps. *Will not fit 20/21/40/41 models.
Specifications:

Type	Grip Frame Insert
Model	Grip Frame Insert
Finish
Material	Polymer
Color	Black
Height
Medallion	No