Pearce Frame Insert For Glk20sf/21sf

These units fit in the bottom rear cavity of a Glock M20 and M21 SHORT FRAME utilizing a friction fit to secure it to the frame. These grip frame inserts will not fit a Generation 4 frame nor a standard Glock M20 or M21 frame.

Features :

• High Impact Polymer
• Keeps Out Dust and Debris
• Friction Fit