Defy the Dark with the New ECHO R Series of Thermal Riflescopes
From streamlined detection to long-range thermal superiority with integrated ranging, the ECHO RQ35, RV35, and RV50-LRF are engineered to put you in complete control. Expand your awareness and gain clarity in the chaos—no matter the conditions.
LWIR 12um 50Hz thermal core with ≤20mK sensitivity
Record still photos and video with audio
BDX 2.0 enabled
LRF model includes: Integrated 1000y laser rangefinder, and Applied Ballistics Ultralight
12-hour runtime
Ships with (2) 18500 batteries, Battery charger, USB-C cable, flip back lens cover, removable eyepiece, 1.535” 30mm ALPHA6 rings, lens cloth, and thermal target
SIG SAUER Infinite Guarantee unlimited lifetime warranty

8 Selectable Palettes
ECHO RQ35
Efficient thermal detection in a streamlined 35mm platform.
The ECHO 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.

ECHO RV35
Enhanced clarity and versatility across variable terrain.
The ECHO RV35 Thermal Riflescope is engineered for users who demand greater identification capability without sacrificing maneuverability. Built around a 35mm objective lens and higher-resolution thermal sensor, the RV35 delivers improved detail and image fidelity—allowing you to differentiate targets more confidently as distances increase. It’s the most versatile option in the ECHO R family, adapting seamlessly to changing environments and engagement scenarios.

ECHO RV50-LRF
Long-range thermal precision with integrated ranging intelligence.
Made for thermal superiority, the ECHO RV50-LRF Thermal Riflescope delivers the most advanced capability in the ECHO R lineup. Featuring a larger 50mm objective lens and an integrated 1,000-yard laser rangefinder, the RV50-LRF provides superior detection, refined identification, and real-time ranging data. Paired with BDX 2.0 and Applied Ballistics Ultralight, it delivers tailored shoot-to solutions that eliminate guesswork and empower confident long-range engagements—day or night.

Our Promise
We guarantee that your new SIG SAUER firearm, optic, or suppressor was originally manufactured free of defects in material, workmanship, electrical, optical, and mechanical function. In the event it becomes damaged from defect in any way we will repair your SIG SAUER product, at no charge to you. If we cannot repair your product, we will replace it or, if we cannot replace it, we will provide you with a replacement of equal value.
SIG SAUER 72 PEASE BLVD NEWINGTON, New Hampshire 03801






