Fully-contoured, cross-dovetail sights complete with the in- creased, low light visibility of genuine Trijicon, tritium vials. Finish machined in three of the most popular heights to up-grade your present cross-dovetail front/low-mount rear sight- ing system. Or, install this extra-strength design in place of the swage-in tenon. Tapered dovetail holds the sight firmly in place without roll pins. Fits nominal 60° x .300" x 060" front sight dovetails. Installation requires machining of slide. Mfg: Heinie SPECS: Steel, blued, matte finish, green dot. Blade; .126" (3.2mm) wide, .185" (4.6mm), .190" (4.8mm) or .200" (5mm) high.