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 Pistol Grips are available in two textures, a coarse Grappler pattern or Fine Checkered, and two color patterns, green/black and grey/black.