Found this sight information on GBO a while back, ordered one and it is a good looking unit. Machined from steel and has easy adjustments for windage and elevation. It is a bit taller than a williams WGRS so a taller front sight may be needed on some rifles. I installed it on my 500 S&W handi and the front factory sight should be about perfect. The S&W handi had firesights and the rear open firesight i did not like. The 500 S&W and my huntsman have the same sights and barrel diameters so should work on those as well. I have not sighted in as its nicer inside in Minnesota today. Minn muzzleloader opens on Sat. so will have to pop a few test loads thru the huntsman! Ideal 60