The Sig Sauer ECHO3 1-6x23 digital thermal imaging reflex sight brings cutting-edge thermal technology to hunters who need to spot game in low-light and no-light conditions without being stuck behind a traditional scope. Built around an uncooled thermal core operating at 30Hz, this compact reflex-style sight delivers real-time heat signatures across eight selectable color palettes, giving you flexibility in how you read the landscape. Whether you're hunting predators, hogs, or pursuing game across varying terrain and lighting, the ECHO3 keeps you mobile and aware without sacrificing optical performance.

What sets the ECHO3 apart is its integration with Sig Sauer's BDX ecosystem. Pair it with a KILO rangefinder via WiFi or Bluetooth, and the sight's active reticles adjust automatically based on range input—eliminating manual holdover guesswork. You can also customize fixed reticles directly from the BDX mobile app, tailoring the sight to your specific rifle and hunting style. The aspheric 23mm objective lens delivers a 10-degree field of view with up to 6x digital magnification, while the 1-6x magnification range keeps close and mid-range targets sharp. LevelPlex anti-cant technology with sensitivity down to 0.5 degrees ensures your shots break true, even on uneven ground or from awkward positions.

Runtime and convenience matter in the field. The ECHO3 runs for more than six hours on a pair of CR123 batteries and features motion-activated display (MOTAC) that powers up when it detects movement, stretching battery life on long sits. Video and image recording capture your hunts in all eight color modes—with recoil activation for automatic shot documentation. The sight is sealed to IPX-4 waterproofing standards and built to withstand demanding conditions. M1913 rail mounting makes installation straightforward on AR platforms and other modern rifles. Designed and assembled in the U.S.A., the ECHO3 weighs just 14.3 ounces and measures 4.3 inches long—short enough to clear your line of sight and fast enough to follow action without scope shadow.

The Sig Sauer ECHO3 1-6x23 digital thermal imaging reflex sight brings cutting-edge thermal technology to hunters who need to spot game in low-light and no-light conditions without being stuck behind a traditional scope. Built around an uncooled thermal core operating at 30Hz, this compact reflex-style sight delivers real-time heat signatures across eight selectable color palettes, giving you flexibility in how you read the landscape. Whether you're hunting predators, hogs, or pursuing game across varying terrain and lighting, the ECHO3 keeps you mobile and aware without sacrificing optical performance.

What sets the ECHO3 apart is its integration with Sig Sauer's BDX ecosystem. Pair it with a KILO rangefinder via WiFi or Bluetooth, and the sight's active reticles adjust automatically based on range input—eliminating manual holdover guesswork. You can also customize fixed reticles directly from the BDX mobile app, tailoring the sight to your specific rifle and hunting style. The aspheric 23mm objective lens delivers a 10-degree field of view with up to 6x digital magnification, while the 1-6x magnification range keeps close and mid-range targets sharp. LevelPlex anti-cant technology with sensitivity down to 0.5 degrees ensures your shots break true, even on uneven ground or from awkward positions.

Runtime and convenience matter in the field. The ECHO3 runs for more than six hours on a pair of CR123 batteries and features motion-activated display (MOTAC) that powers up when it detects movement, stretching battery life on long sits. Video and image recording capture your hunts in all eight color modes—with recoil activation for automatic shot documentation. The sight is sealed to IPX-4 waterproofing standards and built to withstand demanding conditions. M1913 rail mounting makes installation straightforward on AR platforms and other modern rifles. Designed and assembled in the U.S.A., the ECHO3 weighs just 14.3 ounces and measures 4.3 inches long—short enough to clear your line of sight and fast enough to follow action without scope shadow.