GunSmith Cats received a 4 volume aizouban reprint from July 22, 2005 and October 21, 2005.
The series was published in English by Dark Horse; initially in individual monthly chapter issues from May 1, 1995 to August 15, 2001, in 9 volumes from October 1, 1996 to February 13, 2002, and in 4 omnibus volumes following the aizouban reprint from March 14, 2007 to December 19, 2007. The series also began serialization in the British magazine Manga Mafia starting September 1996. The Dark Horse release retained the original Japanese right to left reading format, and removed certain scenes with sexual content with the approval of Kenichi Sonoda.