A skid has a pair of laterally disposed base members and a first and a second support member for mounting a first and second piece of equipment requiring horizontal axial alignment, for example, a pump and a motor. The electronic grip frame 21 utilises an optical sensor in order to detect the operation of a trigger 29 and a second optical sensor to detect the presence of objects within the breech of the paintball marker. , a wireless phone, mobile device or personal digital assistant, to contact an informationcall center where an operator provides personalized information and communications services to the user in accordance with the invention.