The Ergo X Grip Extreme Texture is for shooters looking for the highest level of grip. With almost double the depth of texture in the SUREGRIP as compared to ERGOs original texture, this grip is designed for extreme performance and comfort. Comes with the proprietary Gapper for increased comfort and Installation Hardware Pack.Features :Fits AR-15 type firearms in .223 and .308Ergonomically correct finger groovesIntegrated rear upper extension supports the web of your handExtreme texture improves weapon controlVirtually impervious to oils and solventsOvermolded SUREGRIP material provides non-slip gripERGO SURE GRIP rubber textureComes with The Gapper