An ORIGINAL Winchester No 24 Semi-buckhorn SPORTING REAR SIGHT. These sights were removed from Winchester Sporting rifles and were the standard factory issued sight on later Winchester lever-action rifles. The sight has a curved buckhorn configuration with one notch in the middle, and on the bottom there is a set screw. Bluing still strong and sights in excellent condition. The early elevator (st40 or st117 wop) is correct for this rear sight.