Hiviz GP2006 Ruger GP100 Front Sight Revolver Black - GP2006 is for Ruger GP100 Revolver front sight. Included in package are interchangeable LitePipes in red, green, white, and includes carrying case for pipes and key to interchange pipes. Fits all GP100 model revolvers with adjustable rear sights. The height of sight from barrel up is .270" (overall sight height from base of dovetail to tip is .445").