Optics & Scopes | RangefindersSig SauerSold by Sportsmans Guide

Sig Sauer

SIG SAUER KILO4K 6x22mm Laser Rangefinder

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

6x Magnification

For ranging and target identification

4,000-yard Maximum

Detection range

Gen Ii

Lightwave DSP technology delivers fast

Hyperscan Provides

Four range updates per second

Onboard Temperature,

Pressure, and humidity sensors support

$599.99
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SKU: WX2*0735915

Overview

Built for hunters who want fast ranging and ballistic support in one tool, this rangefinder combines 6x magnification with a 4,000-yard maximum detection range and a display that automatically adjusts brightness. Its onboard temperature, pressure, and humidity sensors support real-time ballistic calculations, while BDX 2.0 connectivity can pass that information to a compatible BDX riflescope for an illuminated holdover point. Optical Image Stabilization helps keep the image steady, and HyperScan provides up to four range updates per second in scan mode. It is a strong fit for serious field use where quick readings and integrated shot planning matter, though the BDX features depend on compatible optics sold separately.

Why Hunters Choose the Sig Sauer

4,000-yard Maximum

Detection range supports long-distance ranging

Gen Ii

Lightwave DSP technology delivers fast

Onboard Temperature,

Pressure, and humidity sensors support

Optical Image

Stabilization helps reduce hand shake

Bdx 2.0

Compatibility can send ballistic data

Key Features

  • 6x magnification for ranging and target identification
  • 4,000-yard maximum detection range
  • Gen II Lightwave DSP technology delivers fast ranging performance
  • HyperScan provides four range updates per second in scan mode
  • Onboard temperature, pressure, and humidity sensors support real-time ballistic calculations
  • Optical Image Stabilization helps reduce hand shake and vibration
  • BDX 2.0 enabled for compatibility with paired BDX riflescopes

Best Used For

  • Long-range hunters needing fast updates and real-time ballistic data for distant targets
  • Shooters using a compatible BDX scope who want connected holdover information
  • Hunters ranging in changing weather where temperature, pressure, and humidity matter
  • Users who value a stabilized viewing image when holding the rangefinder by hand
  • Serious field users wanting a compact 6x rangefinder with OLED display and scan mode

Specifications

Ballistic Calculation SupportYes
Ballistic Output UnitsMOA or MILs
Bdx CompatibilityBDX 2.0 enabled
BluetoothYes
Display Brightness AdjustmentAutomatically adjusts brightness
Display TypeRed TOLED Lumatic(TM) display
Environmental SensorsTemperature, pressure, and humidity
Lightwave Dsp TechnologyGen II Lightwave(TM) DSP Technology
Magnification6x
Maximum Detection Range4,000 yards
Objective Lens Diameter22mm
Optical Image StabilizationYes
Range Updates Per Second4
Scan Mode Range Updates Per Second4x
Spectra Coat Anti Reflection CoatingsYes

Pros

  • 4,000-yard maximum detection range supports long-distance ranging needs.
  • Gen II Lightwave DSP technology delivers fast range updates in scan mode.
  • Onboard temperature, pressure, and humidity sensors support real-time ballistic calculations.
  • Optical Image Stabilization helps reduce hand shake and vibration in the image.
  • BDX 2.0 compatibility can send ballistic data to a paired BDX riflescope.
  • Red TOLED Lumatic display automatically adjusts brightness for changing light conditions.

Considerations & Trade-offs

  • Requires a compatible BDX scope or sight to use the full ballistic data-sharing workflow; that pairing is sold separately.
  • The 4,000-yard maximum detection range is a stated capability, but actual ranging results will vary with target size, reflectivity, and conditions.
  • The display and ballistic features add capability, but they also make this a more specialized rangefinder than a basic point-and-shoot model.
  • Optical Image Stabilization and onboard environmental sensors support the user, but they do not replace careful setup of your ballistic profile and paired optic.

Suggested Comparisons

  • Laser rangefinders
  • Ballistic rangefinders
  • Hunting optics
  • Rangefinding binoculars

Suggested Accessories

  • Rangefinder case
  • Lens cleaning kit
  • Neck strap
  • CR2 battery

Frequently Asked Questions

What is the maximum detection range of the SIG SAUER KILO4K?

The KILO4K is listed with a 4,000-yard maximum detection range.

Does the KILO4K provide ballistic data for holdover and windage?

Yes. The product description says it uses onboard temperature, pressure, and humidity sensors for real-time ballistic calculations, and in BDX-U mode it can calculate windage and elevation solutions in MOA or MILs.

Is the KILO4K compatible with SIG SAUER BDX optics?

Yes. It is described as BDX 2.0 enabled and able to communicate via Bluetooth with paired BDX sights or scopes, which are sold separately.

Does this rangefinder include image stabilization?

Yes. The long description says the KILO4K includes Optical Image Stabilization technology to help reduce hand shake or vibration in the image.

What display does the KILO4K use?

It uses a red TOLED Lumatic display that automatically adjusts brightness.