Williams Gun Sight Foolproof Receiver Sight w/Target Knob Rear Adjustable

The internal micrometer adjustments feature secure positive locks. The FP receiver sight is robust, durable and reliable. Constructed from an alloy with a tensile strength of 85000 lb, this sight remains lightweight and compact, with a weight of only 1.5 oz. In the realm of big game hunting, the FP receiver sight surpasses all other brands and models of receiver sights in sales. Numerous rifles are now pre-drilled and tapped at the factory to accommodate the installation of the FP receiver sight