Pachmayr G10 Tactical Grappler 1911 Pistol Grips - Grey/Black - G-10 material is a fiberglass based epoxy resin laminate. It is an extremely tough and durable material that is impervious to moisture, weather or chemicals, making it a perfect material for handgun grips. The multiple layered construction allows the use of different colors to be added to the semi-auto grips, creating attractive patterns as it is machined. Pachmayr G-10 Tactical grips are the toughest, most durable, and best looking semi-auto grips on the market. Grappler Texture Grey/Black Grips Super Tough, Durable G-10 Material Impervious To Moisture, Weather Or Chemicals