Made in America, Talley Manufacturing's 2-Piece Winchester Model 70 Picatinny Rails are machined entirely from high grade 7000 series alloy and protected with a hard-coat anodizing to 65 Rockwell ensuring the craftsmanship of these Picatinny Rails last the lifetime of your firearm. These 2-Piece Winchester Model 70 Picatinny Rails are all designed and manufactured with precision to fit your firearm with the industry's tightest manufacturing tolerances. This 2-piece system offers the standardize picatinny mounting option without overbridging the action to allow for easier top loading of the rifle. Talley's 2-Piece Winchester Model 70 Pic Rails provide a mounting platform for all optics mounts that have been designed in accordance with the MIL-STD-1913 Pic Rail specifications, to include all Talley Picatinny scope mounts.FeaturesCompatible with Winchester Model 70 Post-64 Rifles (0.330" Rear Hole Spacing)Mounting Hardware Included (1/4" 6-48 Screws)