A holster secures a turkey call to a hunter's leg or arm freeing up one hand for supporting her/his shotgun or bow. A series of serrations on an external face of an annular retainer ring engage serrations on an internal surface of a cylindrical upper portion of the holster to retain the retainer ring and the encircled turkey call engaged with the holster. A reverberation chamber in the lower portion of the holster has an angled reflecting surface to bounce the sound vibrations emanating from the turkey call out an opening in the opposing side wall.