It has the same bronze colouration as regular daleks. However, the dome is flatter and has no luminosity dischargers. It has no eyestalk, plunger or gunstick. Instead, the swiveling section has a massive cannon, which can deliver energy blasts powerful enough to destroy other daleks.
Like all other Daleks, Special Weapons Daleks hate all life forms that aren't Dalek, but obey the orders of the Supreme unquestioningly.