SIG SAUER ECHO RQ35 3.5-28X35MM THERMAL RIFLE SCOPE The ECHOA(R) RQ35 thermal riflescope delivers dependable thermal performance in a compact, efficient configuration designed for practical engagement distances. Featuring a 35mm objective lens and a responsive thermal core, the RQ35 expands your awareness with crisp heat separation-enabling fast detection and confident target differentiation in close-to-mid range environments. Purpose-built for balance and maneuverability, it's an ideal entry point into the ECHO R lineup. FEATURES LWIR 12um 50Hz thermal core with less than 20mK sensitivity 35mm Objective lens - Optimized for f Mfg: Sig Sauer, Inc.