HIVIZ front sights are machined from solid steel and feature fiber optic LitePipe inserts for increased visibility and faster sight acquisition in all conditions. Includes interchangeable lite pipes. FeaturesLITEWAVE interchangeable LitePipe designIncludes green, red and white LitepipesAll steel constructionLitePipe diameter 0.090Front sight height compatible with HIVIZ adjustable rear sight (sold separately)Replacement LitePipe Handgun version #6 Notes: Height measurement is from the top of the sight blade to the bottom, not including the tenon portion of the sightGunsmith installation is recommended by HIVIZ. The dovetail portion of the sight is slightly oversized to allow for variance between firearms and fitting will be necessary. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.