Slaughter Gun

Massacre Gun , Minagoroshi no kenj? is a 1967 Japanese yakuza film directed by Yasuharu Hasebe.

Massacre Gunn was written by veteran studio screenwriter Ryz Nakanishi and credited to him and Takashii Fujii. Fujii was a pseudonym for director Yasuharu Hasebe.Massacre Gun was released theatrically in Japan on September 6, 1967. The film has receive retrospective release at film festivals, such as the 2012 Fantasia Film Festival where the film received its North American premiere. ........

Source: Wikipedia