American Generals Eisenhower and Clark were intrigued by demonstrations of the secret weapon, and the U.S. Army decided to develop their own system based on the cast hull M3A1 Lee Medium Tank. The CDL replaced the secondary armament turret atop the M3A1, but the addition of a dummy gun next to the beam slit gave it the appearance of a normal gun tank. The turret was mostly identical to the British version, with the major difference being a ball mount for a Browning M1919 .30 Cal. as opposed to the British BESA. Known by their crews as “Gizmos”, 497 such American Canal Defense Light equipped tanks were produced by 1944.