Features windage and elevation knobs with click detents in minute and 1/4 minute graduations. Mfg: Lyman SPECS: Machined aluminum body, steel knobs. Matte black finish. Adjusts from 1.06" (2.6cm) to 1.56" (3.9cm) above bore line. Includes 7/8" (22mm) target disc w/.040" (1mm) aperture. Wt. 4 oz. (113g). Fits Williams Foolproof Bases. For .22RF target rifles.
