The SIG SAUER ROMEO Zero Elite 1x24mm Reflex Red Dot Sight shares the same ultra-compact size and mounting footprint of the popular ROMEOZero micro red dot, but is loaded with a host of premium upgrades. Starting with the scratch-resistant glass aspherical lens delivering unmatched clarity and a distortion-free sight picture when compared to competitors, the proprietary carbon-infused polymer housing with reinforced lens area also gives the SIG SAUER ROMEO Zero Elite 1x24mm Reflex Red Dot Sight an even greater level of drop protection, making it incredibly rugged. These Red Dot Sights also come with hardened steel protective shrouds for an even greater level of durability. The ROMEOZero Elite features the brand new circle-dot reticle for faster, more instinctive acquisition and our new T.A.P. (Touch-Activated Programming) technology gives the user the ability to change brightness and reticle options with just a tap on the optic. All rear surfaces of the housing have anti-reflection grooves molded in, including the backup rear sight notch which is marked with Grade A Swiss SuperLuminova pigment for visibility in dark environments.  Specifications for SIG SAUER ROMEO Zero Elite 1x24mm Reflex Red Dot Sight: Manufacturer: SIG SAUER Color: Black Fabric/Material: Carbon-Infused Weapons Grade Ultralight Polymer Magnification: 1 x Objective Lens Diameter: 24 mm Illumination Type: LED Illumination Color: Red Brightness Settings: 8 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Open Lens Material: Glass Battery Type: CR1632 Battery Quantity: 1 Battery Life: 20000 hours Gun Make: Springfield Armory, Glock Gun Model: Springfield Armory Hellcat OSP Length: 1.6 in Width: 1 in Height: 0.98 in Weight: 0.5 oz Magnification Type: Fixed Quantity: 1 Attachment/Mount Type: Screw Optic Cut: Shield RMSc Features of SIG SAUER ROMEO Zero Elite 1x24mm Reflex Red Dot Sight: Carbon-Infused WeaponsGrade Ultralight Polymer Housing with the ROMEOZero/ Shield RMSc Footprint, Provides Increased Shock and Drop Protection Compatible with Springfield Hellcat OSP & GLOCK G43X MOS Pistols Aspherical Glass Lens with Zero Distortion T.A.P. (Touch-Activated Programming) and Button-Activated Brightness and Reticle Selection Modes 8 Daylight Brightness Settings Up to 20,000 hours of Runtime Structurally Enhanced Steel Shroud Included for Added Protection Package Contents: SIG SAUER ROMEOZero Elite 1x24mm Reflex Red Dot Sight Custom mounting screws for compatibility with pistols such as the Springfield Hellcat OSP and Glock 43X MOS