This is a Pearce Grip Magazine Base Plate known as the Grip Insert, model PG-G5BP.
Grip Enhancers replace the magazine base plate and retain all other factory components. They do not alter the capacity of the magazine and they provide better comfort by filling the semi-circular cut-out in the lower front area of the grip body. This product will only work on magazines equipped with double notches for the ambi magazine release.(Gen 4&5 magazines)
Features:
High Impact Polymer
Increased Comfort
Fits Gen5 17, 19, and 34
