 He is named after the AK-47 assault rifle.Wrestling most his career under a mask, Pardo's true identity was revealed on December 22, 2011, when he lost his mask in a match against Trauma I.

Pardo made his debut in 2003, working as an "enmascarado" called "Sureño de la Muerte" (Spanish for "Southern Death").Later on he was recast as "Black Stone", working on the undercard of various International Wrestling Revolution Group (IWRG) shows.