A firearm holding device for holding a firearm having a forend, a grip and a buttstock. The holding device comprises a base having a longitudinal axis, a forend support mounted on the base for supporting the forend of the firearm, a grip support mounted on the base for supporting the grip of the firearm, and a buttstock support mounted on the base for supporting the buttstock of the firearm. At least one of the forend support, grip support and buttstock support are moveable on the base along the longitudinal axis of the base to accommodate various sizes and types of firearms.