JR21 produced a water pistol moulded in red plastic packaged in a plastic bag with a header card featuring a picture of John Tracy. The direction of the water can be changed by moving the blue nozzle at the end of the barrel. The gun is based on the ones used by the boys in the series.

This toy was also included as the gun in the Berwick Uniform.

Original price 2/11, reducing to 2/6 in 1967.