An ORIGINAL Winchester No 22 Flat Top SPORTING REAR SIGHT. These sights were removed from Winchester Sporting rifles and were the standard factory issued sight on the early Winchester lever-action rifles. The sight has a flat-top configuration with one notch in the middle, and on the bottom no set screw. Bluing still strong and sights in excellent condition. The early elevator (st40 or st117 wop) is correct for this rear sight.