Abstract: A fore end wrench for removing a locking nut from a slide action of a pump action shotgun. The fore end wrench includes a body member being designed for being inserted into the locking nut of the slide action of the shotgun. The body member is designed for supporting the locking nut of the shotgun. An engagement member extends through the body member. The engagement member is designed for engaging channels of the locking nut whereby rotation of the body member by a user rotates the engagement member against the locking nut for rotating the locking nut to remove the locking nut from the slide action to allow removal of the slide from the slide action.