This product fits under any compact GM 1911 side panel grip adding rubber finger grooves for comfort and better handling. Use these finger grooves with the Springfield V10 single stack, Colt Officer Model/CCO/Defender, Kimber Compact, Para Ordnance C7.45 and equivalent frame models. Features: Allows the user to use any type of side panel grip (wood, simulated ivory, pearlite, etc) and have front finger grooves Because the side portion of these grips are only 1mm thick the overall width is only minimally affected