This is a Pearce Grip Mag Extension, model PG-XDMOD2.
These units replace the magazine floor plate and internal floor plate on the 9mm (13 round only) and 40 S&W. They will add approximately 1" inch in length and additional capacity.(2 rounds to 9mm and 1 round to the 40 cal.)
Features:
High Impact Polymer
Increased Comfort and Control
Added Gripping Surface
