Lightweight, Weaver-style mount positions an extended eye relief scope forward of the receiver for quick, both-eyes-open sighting. Weaver-style base features multiple cross slots for attaching a wide range of electronic and optical sights. Mounts to existing holes and rear sight dovetail. Sets low to allow use of iron sights without removing mount. Requires no modifications to rifle. Marlin models available for 1895 Guide Gun, 1894 and 336 rifles. Winchester fits Model 94's with rear sight dovetail 4" forward of receiver. a Mfg: Xs Sight Systems SPECS: Aluminum, black, matte finish. 8" (20.3cm) long. Includes instructions, plastic punch, hex wrench and LoctiteA(R). Winchester also includes bedding compound.