FEATURES -Hogue Grip -For: Smith & WessonK&L Frame Round ButtConversion-Converts Round Butt to full size "Square Butt Style" Grip-For Models:10, 12, 13, 19, 64, 65, 66, 67, 386, 396, 460, 500, 520, 547, 581, 586, 617, 619, 620, 647, 648, 681, 686 &696-Monogrip -Over Molded Rubber -With Finger Grooves -Black