Use as a high quality alternative to ringmounts sold by firearms manufacturers and as a no tap mounting method. Because these rings are machined from solid steel, they offer superior integrity and tighter tolerances. Features: Forged and machined steel construction Versatile and available for many different rifles Use as a high quality alternative to ringmounts sold by firearms manufacturers and as a no tap mounting method for most 0.22 rimfire rifles with an 11 mm, 13 mm, or 3/8 inches dovetail rail Superior integrity and tighter tolerances Tapered dovetail receiver