Story about H&K MP5 !

Silenced MP5

Heckler & Koch or H&K it's Weapon Industry name. MP5 is popular SMG (Sub Machine gun), German make this gun in 1964, and West German use MP5 for police. First MP5 name is HK54, HK : "5" for SMG and "4" for 9 x 19 mm caliber ( Read in Wikipedia >>Problem?<<). U.S. navy seal also use MP5 for  main weapon.