Machined steel, globe front with interchangeable inserts. Mfg: Lyman SPECS: Steel, blued. 1 1/4" (3.1cm) long, .875" (22.2mm) diameter. 3/8" (nominal) dovetail. 1.8 oz. (51g) wt. .700" (17mm) from bottom of dovetail to center of aperture. Includes 2 posts, 5 aperture inserts.
