HiViz Smith&Wesson 617 Front Fiber Optic Sight (Green)
HiViz handgun sights have been redesigned.  With an all-new square profile, sight picture acquisition time is reduced.  Serrations on the rear of the sight base combine with a slightly recessed LitePipe to eliminate the "halo effect" common to many sights and increase the durability of the toughest LitePipes available.  This new design is also more holster friendly.