Easy Aperture Sight Mounting For Target Rifles
No machining required, no holes to drill. Clamps quickly onto target contour barrels. Separate, heat treated, screw-on base is machined to accept Anschutz, Redfield and other, similar, target globe front sight assemblies, sold separately.
Big Book Catalog, Issue:66, Page:282
SPECS: Steel, blue, matte finish. Band - 1" (2.5cm) long, fits barrels .750" (19mm), .812" (20mm), .835" (21.2mm) or .922" (23.4mm) diameter. .562" center to center hole spacing.