Designed for regular rifles and ar modern sporting rifles.Bore guides properly align the cleaning rod and reduce solvent overflow, protecting the bore and action of your rifle.Screw-in design creates a tight chamber fit, which aligns bore and protects action area.It fits bolt diameters.695" or smaller - compatible with cleaning rods up to.375" diameter.9 piece kit includes plastic storage case.Quantity: 9 Piece KitMaterial: PlasticSuitable For: AR-Platform