This is a genuine Glock OEM sight set: a steel screw-in front sight paired with an adjustable polymer rear sight. The rear sight adjusts for both windage and elevation and carries a contrast insert for a fast sight picture, giving you a factory-correct replacement or upgrade over fixed sights. Features: Genuine Glock OEM front and rear sight set Steel screw-in front sight (SP07079) Adjustable polymer rear sight (SP05977) with contrast insert Adjustable for windage and elevation Fits standard-frame Glock pistols including the Glock 17, 19, 22, and 23 and other models that share the same sight rail. It does not fit the Glock 42, Glock 43, or MOS models. Professional installation with proper sight tools is recommended. GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.