Rival Arms Is Excited to Bring In-Line Night Sights to the for Glock Platform Rival Arms is an up and coming company of individuals who have devoted themselves to individuals who demand more. Rivals Arms motto is more accuracy and more performance, because sometimes standard equipment just isn't good enough. Rival Arms uses a coalition of machinists and designers and coaters to provide you with the highest quality products possible. This particular item is a set of in-line night sights designed for a for Glock 17/19 type slide. The sights feature 2 green tritium dots with white rings surrounding them. The sight housing is made from steel and features a matte black finish. Rival Arms Precision In-line Night Sights (Black) Specifications and Features: Rival Arms RA4B231G In-Line Night Sights Front sight ring for faster sight picture acquisition (White) Quick and accurate U-notch design Green Tritium Illumination Front and Rear CNC-Machined Stainless Steel Construction Snag-Resistant Design Fits Most Standard Holsters Glows bright-no batteries or light exposure required Individually hand-inspected for accuracy 12-year limited warranty Black Finish Fits: for Glock 17/19 Models