An old Rear Sight Marbles No 63 ORIGINAL from and early Winchester model 70 Sporting Rifle, but will also fit on 1892 and 1894 sporting rifles. Sporting Rear Sight Base that Fits standard 3/8 inch dovetails. The sight has Flat-topped Upright with the longer 2 1/4 inch shank yielding an overall length of 3 inches.
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