Mao Se merged with Rheinmetall on 1990 and is now a subsidiary of Rheinmetall.
Although HK is one of the best gun manufacturers, the value of light weapons is not high, so the overall strength is not high in military enterprises. In addition to manufacturing small submachine guns such as MP-5, HK also manufactures military weapons, from pistols to machine guns, and even 40 mm Grenade launchers. Of course, it is impossible to look exactly the same.