A paintball gun throttle regulator device includes a body, an adjusting bolt, an elastic element, an adjusting piston, and a cocking. The lower pad has a positionable pad, which is hinged to the central portion of the lower pad and which is positionable in a position wherein the positionable pad overlies the central portion of the lower pad and a position wherein the positionable pad overlies a portion of the spine board but does not overlie the central portion of the lower pad. A waterproof membrane has marginal material defining a hole, with the marginal material being located outboard of the upper clamping ring. The second mask covers the semi-insulating region.