Zaffiri Precision Fiber Optic Sight Set, Fits Glock, Red Fiber Optic, Black Housing HD.Sights Zaffiri Precision believes these are some of the best sights for the price on the market right now. High quality" NOT hollow" has a set screw on rear" uses stainless front screw - features you won't find on competitors at this price. Standard height sight set (NOT Suppressor Height)