According to ICP's Violent J, 9 Pistolas "doesn't sound like anything else Psychopathic has ever released", explaining, "Legz Diamond is a singer not a rapper but this isn't a rock album and its not an R&B album. There’s definitely nothing pop about it but it’s not a rap album either. It has attitude and aggression like most Psychopathic releases but it's almost like a brand new style of music for us." Legz Diamond plays acoustic guitar on "Made Man".
Allmusic called 9 Pistolas "a quirky blast…The hooks, the good times, and the great feeling are always present on this attractive ride through rap-rock and whatnot." Favortable reviews also appeared in Metro Times and Real Detroit.