Night Fision Optics Ready Stealth Series Sights Features The Night Fision Optics Ready Stealth Series Sights are CNC machined from high quality steel giving the front and rear sights a durable base that holds up to repeated holster draws and slide manipulations. A black nitride coating is applied over the steel to improve wear resistance and corrosion protection compared to an untreated finish keeping the sights looking and functioning like new over years of carry. The blade height measured between .290 and .313 inches without a mounting plate is sized specifically to co-witness with popular enclosed and open emitter red dots like the RMR 507C and 508T. This fitment makes the set a straightforward upgrade for a Glock 17 19 45 or 47 already running an optic. Rather than the aluminum sleeve and painted-on white ring found on many competing tritium sights Night Fision uses a patented injection molded sleeve to hold each tritium vial securely in place. This design creates what the company calls The Perfect Dot a brighter and more durable ring that provides maximum visibility in both daylight and low light conditions. Because the sleeve is molded rather than painted the ring resists chipping and fading over the life of the sight unlike traditional paint rings that degrade with holster wear. Finished entirely in black for a low visibility duty-appropriate profile this sight set gives Glock MOS and non-MOS shooters a reliable backup sighting solution. Night Fision Optics Ready Stealth Series Sights Specifications Manufacturer: Night Fision Model: Optics Ready Stealth Series Sights Type: Sight Color: Black Finish: Black Nitride Material: Steel Blade Height: .290-.313 Compatible Hosts: Glock 17 Glock 19 Glock 45 Glock 47 MOS/Non MOS Optic Compatibility: RMR 507C 508T Height Available At: GrabAGun