Pearce Grip

-Grip Frame Insert for Glock Mid & Full Size Models-Fits M17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37, & 38-Only fits new Generation 4 frames-Will not fit 20 & 21 models-Allows for use of factory interchangeable backstraps-Helps keep debris out of the magazine well