Sig Sauer Electro-Optics Sok6K806 Kilo6K Hdx Ballistic Rangefinder 8X 42Mm Circle Reticle Od Green
The Sig Sauer Kilo6K HDX is a rangefinding binocular built for hunters and long-range shooters who need precision distance data paired with real ballistic solutions in the field. This 8x42mm rangefinder combines a compact, ergonomic design with Sig Sauer's proven Gen II Lightwave DSP ranging engine—the same laser platform that has earned the Kilo line its reputation for reliability across a decade of hunting and shooting applications. The HDX optics system improves light transmission and optical resolution, while the redesigned rubber armor and refined grip texture around the focus wheel and diopter rings make it comfortable to handle in rough conditions.
What sets the Kilo6K HDX apart is its ballistics brains. It ships with Applied Ballistics Ultralight, a complete onboard bullet database that supports up to 25 custom load profiles plus 8 preset groups—so you can dial in data for your specific rifle and ammunition without external connectivity if you choose. Onboard environmental sensors measure temperature, pressure, and humidity to compute real-time ballistic corrections. BDX 2.0 connectivity via low-energy Bluetooth lets you pair the rangefinder with compatible Kestrel weather stations or Garmin devices for even richer environmental input. You can also sync with onX Hunt and BaseMap mobile apps to create remote waypoints on ranged targets, streamlining your hunt planning and route work.
The ranging engine itself delivers sub-foot resolution at close range and reads out to 2,500 yards on typical game, 3,000 yards on reflective surfaces like trees, and up to 6,000 yards on highly reflective targets. Hyperscan mode offers four range updates per second for continuous scanning, while Rangelock locks onto the last valid reading when you're tracking distant or difficult targets. Five target modes (first, best, last, fog, extended range) and five range modes (Applied Ballistics Ultralight and External, Archery, Angle-Modified Range, and Line-of-Sight) give you the flexibility to match the tool to the situation. A single CR2 battery delivers a minimum of 4,000 ranges, and the ODG finish blends into natural environments while keeping weight down at 27.9 ounces.
Key Features
- 8x magnification with 42mm objective lens for bright, detailed glass in a streamlined profile
- Gen II Lightwave DSP ranging engine with sub-foot resolution and up to 6,000-yard capability on reflective surfaces
- Applied Ballistics Ultralight onboard with complete bullet database, 25 custom profiles, and 8 preset ballistic groups
- Onboard environmental sensors (temperature, pressure, humidity) for real-time ballistic calculation
- BDX 2.0 Bluetooth connectivity to integrate Kestrel weather and Garmin data
- Five target modes and five range modes for hunting, shooting, and archery workflows
- Hyperscan (4 updates per second) and Rangelock for continuous and lock-on ranging
- onX Hunt and BaseMap app integration for remote waypoint creation on ranged targets
- Redesigned rubber armor and textured focus and diopter rings for improved field ergonomics
- Circle reticle in segmented OLED display
Specifications
| Magnification | 8x |
| Objective Lens Diameter | 42 mm |
| Height | 2.3 in (58 mm) |
| Overall Length | 5.4 in (137 mm) |
| Overall Width | 5.3 in (135 mm) |
| Weight | 27.9 oz (792 g) |
| Eye Relief | 17.5 mm |
| Field of View | 7.6° |
| Diopter Adjustment Range | +/− 3 |
| Battery | 1x CR2 |
| Minimum Runtime | 4,000 ranges |
| Reticle Type | Circle |
| Display | Segmented OLED |
| Range on Deer | Up to 2,500 yards |
| Range on Trees | Up to 3,000 yards |
| Max Reflective Range | Up to 6,000 yards |
| Laser Divergence | 1.6 x 0.1 MRAD |
| Color | OD Green |
Frequently Asked Questions
What ballistic data does the Kilo6K HDX include out of the box?
The rangefinder ships with Applied Ballistics Ultralight, which includes a complete onboard bullet database. You can load up to 25 custom ballistic profiles for your own loads or ammunition, plus choose from 8 preset onboard ballistics groups for common calibers.
Can I use this rangefinder with external weather or ballistics devices?
Yes. The Kilo6K HDX features BDX 2.0 Bluetooth connectivity (low-energy) that allows you to pair it with compatible Kestrel weather stations and Garmin devices. This lets you stream real-time environmental data to enhance ballistic calculations beyond the rangefinder's onboard sensors.
Does the Kilo6K HDX work with hunting and mapping apps?
Yes, it integrates with onX Hunt and BaseMap mobile applications, allowing you to create remote waypoints on targets you range in the field.
How far will this rangefinder reach on typical hunting game?
The Kilo6K HDX will range deer out to 2,500 yards, reflective surfaces like trees to 3,000 yards, and highly reflective targets up to 6,000 yards. It also offers a sub-foot range resolution for improved accuracy at closer distances.

