This is slight variant from the standard officer's pistol, and was used in the Series 2 episode 'Games' while Travis' robotic arm is malfunctioning. Martin Bower's replica of this gun has itself been replicated, notably by an ebay garage kit company who like to copy the work of others without doing the research. but Martin's memory seems to be off. CC, do your own trawling through screen-caps and you'll see that Martin's version is way out :)
