The Pearce Grip® Frame Insert for Mid / Full-Size Gen 1-3 Glock® helps finish off the overall look of your pistol's frame and allows for use with or without the factory interchangeable backstraps. Plus, this insert is constructed with high-impact polymer and is designed to keep out dust and debris from your pistol's mag well. Made in USA.

Compatible with Glock 17, 18, 19, 20, 21, 22, 23, 24, 31, 32, 34, 35, 37, and 38. Does NOT fit any SF (Short Frame) nor any Generation 4 or 5 frames.