This is a Pearce Grip Rubber known as the Grip, model PGOM1.
Pearce Grips 1911 Compact Model Rubber Finger Groove insert fits under any compact GM 1911 side panel grip adding the rubber finger grooves for comfort and better handling. The allow the users to use any type of side panel grip (wood" simulated ivory" pearlite" etc.) and have front finger grooves. 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:
1911 Compact Model Rubber Finger Groove Insert
The side portion of these grips are only 1mm thick so the overall width is only minimally affected
