SIG Sauer KILO3K Rangefinder

The KILO3K isn't just fast — it's the fastest rangefinder engine on the market, built for hunters who don't have time to guess and can't afford to miss. Whether you're ranging a bull across a basin or dialing in a long-range shot before the wind changes, the KILO3K gives you the exact number you need, instantly.

More Than Just a Range

Most rangefinders tell you how far. The KILO3K tells you exactly where to hold. In BDX-U mode, it reads temperature, pressure, and humidity in real time, runs your ballistic profile on the spot, and delivers a precise windage and elevation solution — displayed right in the eyepiece and automatically sent via Bluetooth to your paired BDX scope as an illuminated holdover dot. No math, no guessing, no second-guessing.

Built for How You Hunt

Five range modes cover every situation you'll face in the field:

• LOS (Line of Sight) — straight-line distance
• AMR (Angle Modified Range) — true horizontal distance for steep uphill or downhill shots
• Archery Mode — dialed in for bowhunters
• BDX-U — onboard ballistics with real-time environmental data
• BDX-X — pairs with a Kestrel Elite or Garmin Foretrex for extreme long-range solutions beyond 800 meters

Five target modes — First, Best, Last, Fog, and Extended Range — mean you're getting the right target in any conditions, not just the easiest one to range.

Glass You Can Trust

The 6x22mm monocular is built with SpectraCoat anti-reflection coatings for sharp, clear light transmission from first light to last. The red OLED display reads clean in full daylight and low light, and the Lumatic display automatically adjusts brightness as conditions change so you're never squinting or washing out.

HyperScan delivers 4 range updates per second when you're scanning — so you can track a moving animal in real time. RangeLock holds your last reading on distant targets when a clean range is hard to hold.

Packable. Durable. Guaranteed.

Compact polymer housing keeps weight down without sacrificing toughness. Adjustable eyecup and diopter fit any shooter. Reads in yards or meters to the tenth. Works with the free SIG BDX app (iOS and Android) and drops remote waypoints with the BaseMap app.

Backed by the SIG Sauer INFINITE Guarantee and Electronics Limited Warranty — built to last as long as you're hunting.

Applied Ballistics BDX-U provides firing solutions out to 800 meters. Pair with a Kestrel Elite or Garmin Foretrex via BDX-X for elite-level precision beyond 800m, including Coriolis effect, spin drift, and custom drag curves.