A body-mounted holder apparatus includes a rack member which includes bottom rack portions, riser rack portions extending upward from the bottom rack portions, and top rack portions supported by the riser rack portions. Strap members are connected to the bottom rack portions for securing the rack member to a user. A clamp assembly is connected to the top rack portions for holding a game call device. The strap members are used to encircle a portion of the user's body, e.g. a user's thigh, for securing the rack member to a user's body, leaving a free hand for carrying a weapon. The riser rack portions prevent a call device that is being supported by the apparatus from contacting the user and having its sound muffled thereby. Preferably, the strap members include first hook-or-loop connectors and complementary second hook-or-loop connectors.