The pistol-machinegun 9mm HCM-SMG, is a compact weapon
designed for use by armed forces and personnel responsible for
the maintenance of law and order when firepower is needed in
tight quarters.  The pistol-machinegun can delivers fire
with two types of cartridges: 9-mm pistol cartridges and
modernized pistol cartridges, cal. 9mm.

Costs 10 credits.