The MP5SD 9x19mm integrally suppressed submachine gun was developed in response to the special requirements of special operations forces.

The MP5SD has an integral silencer which still has the same length and general shape as an unsilenced submachine gun. Unlike most conventional silenced submachine guns, the MP5SD fires standard velocity ammunition types with the same effect. The use of special subsonic ammunition is not necessary. The integrated silencer effectively suppresses the muzzle flash offering excellent use for night operations using low-light amplifiers. No wonder the MP5SD is one of the most accurate silenced submachine guns of its type and still in use today.