The Revolver utilizes ConneXion Grip an improved version of ConneXion coverstock. ConneXion Grip incorporates a new formula to increase the footprint size of the coverstock which improves mid-lane and back-end traction.The Jack core was designed as a low RG symmetric core with a high differential. The low RG engages in the mid-lane aiding in ball motion, and the high differential increases track flare potential giving the ball more opportunity to grip the back-end while using standard layouts and interchangeable thumb sleeves.With its 4,000 Siaair Micro Pad finish, the Revolver will provide lovely length with a powerful continuous back-end reaction that matches up on medium to oily lane conditions for a variety of bowling styles.The Revolver can be drilled using the standard drilling techniques developed for symmetric bowling balls.The unique core shape of each Brunswick ball is used for weights from 14 to 16 pounds. This approach to lightweight ball engineering provides bowlers with consistent ball reaction characteristics across this weight range. The same drilling instructions can be used for 12- and 13-pound balls. This is because Brunswick makes use of a generic core shape with an RG differential that is close to the 14-16 pound shape.