The Solo R/T monocular features an MRAD based ranging reticle for accurate range estimation and shot calls. FEATURES: Powerful optical system delivers bright images in a compact, lightweight and easy to handle unit With an integrated utility clip, attaches to webbing or other flat edged surfaces for quick external access SD Optical System: High-quality optical system reduces chromatic aberration and delivers clean, bright, sharp images Fully Multi-Coated Lenses: Anti-reflective coatings on all air-to-glass surfaces provide increased light transmission for greater clarity and low-light performance Nitrogen Gas Purged: Gas purged and O-ring sealed for fogproof and waterproof performance in all conditions Rubber Armor: Provides a secure, non-slip grip, and durable external protection Waterproof: Designed to withstand harsh weather conditions Fogproof: Designed to withstand a wide range of temperatures Shockproof: Designed to withstand the highest levels of recoil and impact