It is the directorial debut film of Franco Giraldi (here credited as Frank Garfield), who was Sergio Leone's assistant in A Fistful of Dollars.

[5] The film gained a great commercial success and generated an immediate sequel, Up the MacGregors!

(1967), again directed by Giraldi,[5][6] The MacGregors, horse ranchers of Scottish descent, are underway to the market when they are robbed of their horses by a gang under the helm of a corrupt sheriff.

of Variety found the film to have a "predictable but fast moving plotline" noting that the "offbeat flavor of having the Scottish MacGregor clan living in the rough in 19th century Texas gives this Italian western an added zing., helping overcome simplistic scripting and pedestrian direction."

"[2] A review in the Monthly Film Bulletin noted that the films "colour is so variable and that the script plays it straight around the middle, where the blood-letting makes an uneasy contrast with the tongue-incheek bravado of the earlier scenes.