The SIG SAUER ROMEOZero Elite Auto Off Red Dot Sight shares the same footprint as the ROMEOZero, with the addition of premium upgrades and an auto-shutoff feature. A scratch-resistant, glass aspherical lens offers excellent clarity and a distortion-free view. The proprietary carbon-infused polymer housing features a reinforced lens area, granting this optic even greater drop protection. A hardened steel shroud takes that protection to the next level. Includes button controls and SIG'S Touch-Activated Programming (TAP) which allows the user to change brightness settings and reticles with a simple tap on the optic. The rear surfaces and even the rear sight have anti-reflection, molded grooves. The rear sight is also topped off with Grade A Swiss SuperLuminova pigment for enhanced visibility in low-light environments. Turn up your game with modern tech on this rugged, micro red dot platform from SIG SAUER. Carbon-infused, weapons-grade, ultralight polymer ROMEOZero and Shield RMSc footprint Auto-shutoff features conserves battery Aspherical glass lens Touch-Activated Programming (TAP) 8 brightness settings Up to 20,000 hours of battery life Steel shroud offers additional protection