Pearce Grip PG-G4MF Frame Insert for Glock Gen 4

-Replace the magazine base plate & retain all other factory components.-Adds approximately 1/2" of additional length-An optional filler piece is provided for Glock models with a semi-circular cut-out in the lower frontarea of the grip body (which allows for installation of the PG-19 on all Mid & Full Size Glocks-Blends with the contours & texture of the handgun giving a factory appearance-Made from High Impact Polymer & withstand drop tests at temperatures from -20F - 350F