These units fit in the bottom rear cavity of a For Glock M20 and M21 Short Frame utilizing the lanyard hole to secure it to the frame. These grip frame inserts will not fit a Generation 4 frame nor a standard For Glock M20 or M21 frame. Key Benefit ? Helps keep debris out of the magazine well.
Pearce GripInc. | MPN: PG-FI20SF | UPC: 605849200040
