A moveable guard assembly is configured for installation upon an ATV having a horizontal carrier rack. The movable guard assembly comprises a blocking member and a first securement mechanism. The blocking member is configured for attachment to a front end of the all terrain vehicle in a position adjacent to the horizontal carrier rack. The blocking member is adjustable through movement between a first position in which the blocking member is operable to perform a guard function for protecting at least a portion of the front end of the all terrain vehicle, and a second position in which the blocking member is operable to provide additional support for cargo placed upon the horizontal carrier rack. The first securement mechanism is configured to selectively retain the blocking member in at least one of the first position and the second position. An ATV including the moveable guard assembly is also provided.