187 Lockdown was a British speed garage act, comprising Danny Harrison and Julian Jonah. The duo produced one album, with four singles released from it, and remixed many songs towards the end of the 1990s. The duo also recorded under a number of other aliases, such as Gant, Ground Control, Nu-Birth and M Factor. Of these, M Factor was the most commercially successful, notching up a UK top 20 hit with the vocal version of “Mother”.
“Gunman” was released twice, first in November 1997 where it reached No. 16 on the UK Singles Chart and No. 1 on the UK Dance Chart, then again the following year, peaking one place lower at No. 17. The song contains samples of Ennio Morricone’s “Carillon (Watch chimes)” (from the film For a Few Dollars More), and a vocal sample from Dr Alimantado’s “Gimmie Mi Gun”.