Trailblazer US Infantry Range Finder Solid Brass. Before there were fancy scopes that do everything but talk, real men used range finders to find the distance of an object It has a solid brass construction with a slide and the exact length of twine string attached to take your measurements This authentic reproduction range finder is based on an object height of six feet and is incremented from 50 to 800 yards At only 3”x 1 1/4”, it’s compact and lightweight so that it takes up almost no room in your gear or backpack