Pearce Grips PG-G4MF Frame Insert for Mid and Full Size Glock Gen 4

Descripción del fabricante
Fits Gen 4 (only) models 17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37, and 38.
Allows you to use factory interchangeable backstraps.
Helps keep debris out of the magazine well.
Friction fit holds the unit in place in the bottom rear cavity of the frame.
Made in the USA.