The spectre M4 is an Italian submachine gun that was produced by the SITES factory in Turin. It was designed by Roberto Teppa and Claudio Gritti in the mid-1980s. Production in Italy ceased in the year 1997, with the closure of SITES, but proceeded in very small numbers in Switzerland through Greco Sport S.A., a company founded by Gritti, until 2001. The specter is a compact and light weapon, designed for instant firepower in close combat at short ranges. The four models have top-folding buttstocks, and were available with or without a forward handgrip ahead of the magazine housing. The largely steel specter has a polymer overmolded grip, magazine release and safety/selector levers.