I just bought this Blackhawk in 45 Colt, 4 5/8" bbl, blued, from the guy who bought it new and it has a steel ERH (ejector rod housing) already installed on it, never saw that before, is this new Ruger policy? Previous owner did nothing but run about 150 cowboy level loads through it, factory stuff. Anyone else seen this? The gun has the billboard on the bottom of the barrel, black plastic grips and Ruger's website says it shipped in 2015. It is NOT the Flat Top model and it does have the alloy grip frame.