Night Fision Optics Ready Stealth Series Sights Features Night Fision s patented injection molded sleeve design holds the tritium vials securely in place while creating a brighter more durable photoluminescent ring the company calls The Perfect Dot. Unlike traditional aluminum sleeves and painted-on white rings that fade and chip over time this design maintains its visibility and durability through years of holster wear and handling. The front sight combines a tritium vial with a yellow fluorescent ring for fast acquisition both in bright daylight and low light while the black rear sight avoids any distracting color that could compete with the front sight picture. Both sights are cut to a .330 to .353 inch blade height specifically to co-witness with RMR 507C SRO and ACRO footprint red dot sights. Built to fit Glock 17 19 45 and 47 pistols in both MOS and non-MOS slide configurations this sight set gives owners of optics-equipped Glocks a proper lower-third or absolute co-witness sight picture without guesswork. The black nitride finish resists corrosion and wear keeping the sights looking and functioning like new even under regular carry conditions. Shooters running a red dot on an optics-ready Glock benefit from having a correctly sized set of iron sights as a backup in case the optic fails or runs out of battery. Night Fision s Stealth Series sights give Glock MOS owners a reliable purpose-built co-witness solution for day and night use. Night Fision Optics Ready Stealth Series Sights Specifications Manufacturer: Night Fision Model: Optics Ready Stealth Series Sights Type: Handgun Sight Set Compatible Hosts: Glock 17 Glock 19 Glock 45 Glock 47 MOS/Non-MOS Color: Black Finish: Nitride Blade Height: .330-.353 Optics Footprint: Trijicon RMR Available At: GrabAGun