Sig Sauer KILO 4K 6x22mm Laser Rangefinder with Ballistic Data Xchange
The Sig Sauer KILO4K is a high-performance 6x22mm laser rangefinder packed with advanced technology for ultimate precision. Featuring Optical Image Stabilization (OIS) for a steady, shake-free image, it delivers lightning-fast ranging with Gen II Lightwave™ DSP Technology and HyperScan mode. Equipped with Applied Ballistics Ultralite, onboard environmental sensors, and BDX 2.0 Bluetooth connectivity, it seamlessly integrates with BDX-enabled optics. Built tough with an IPX-7 waterproof rating, a segmented OLED display, and an integrated tripod mount, the KILO4K is the perfect tool for serious shooters.
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The Sig Sauer KILO4K is the most advanced rangefinder in its class, packed with cutting-edge tech to take your long-range shooting to the next level. Whether you're out in the field hunting or fine-tuning your precision shooting, the KILO4K gives you rock-solid accuracy with SIG SAUER’s Optical Image Stabilization (OIS)—eliminating hand shake and vibration for a crystal-clear image every time.
Powered by Applied Ballistics Ultralite, the KILO4K lets you dial in ballistic solutions tailored to your rifle and ammo. It’s got onboard environmental sensors that measure temperature, pressure, and humidity in real time, so you’re always working with the most precise data. Plus, with Gen II Lightwave™ DSP Technology, it delivers lightning-fast ranging over extreme distances, and HyperScan mode gives you four updates per second for quick target acquisition. Need to lock onto a long-range target? RangeLock ensures you capture the last reading, so you won’t miss a thing.
This rangefinder is fully BDX 2.0 Bluetooth enabled, meaning it syncs effortlessly with other BDX-compatible gear like SIG SAUER riflescopes. The Lumatic™ Display automatically adjusts brightness based on ambient light, making it easy to read in any conditions, while the segmented OLED display keeps everything crisp and clear.
Versatility is key, and the KILO4K delivers with five target modes (First, Best, Last, Fog, and Extended Range) and five ranging modes including BDX-U, BDX-X, Angle Modified Range (AMR), Line of Sight (LOS), and Archery Mode. You can even drop remote waypoints using the BASEMAP app. If you need to extend beyond 800 yards, BDX External (BDX-X) mode lets you pair with a Kestrel Elite or Garmin Foretrex for even more advanced ballistic solutions, factoring in Coriolis effect, spin drift, and custom drag curves.
Built tough, the KILO4K features a rugged, lightweight polymer housing with an IPX-7 waterproof rating, so it can handle the elements. It runs on a CR123 lithium battery and even has an integrated tripod mount for added stability when you need it.
- Magnification: 6x
- Objective Lens Diameter: 22 mm
- Exit Pupil: 3.6 mm
- Eye Relief: 18.7 mm
- Field of View (Angular): 6.0°
- Field of View @ 100 yds: 31.4 ft
- Laser Divergence: 1.25 x 0.25 MRAD
- Range Response Time: 0.25 sec
- Scanning Mode: Yes
- Range Resolution (under 100 yds): 0.1 yds
- Maximum Ranges:
- Reflective Targets: Up to 4,000 yds
- Trees: Up to 2,000 yds
- Deer: Up to 1,600 yds
- Weight (with battery): 7.25 oz / 206 g
- Height: 3" / 76mm
- Length: 4" / 102mm
- Width: 1.6" / 40mm
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Optical Image Stabilization (OIS) – Reduces hand shake and vibration, delivering a clearer, steadier image for more accurate ranging.
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Applied Ballistics Ultralite – Provides precise ballistic solutions tailored to your rifle and ammunition, with up to 800-yard firing solutions.
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Onboard Environmental Sensors – Measures real-time temperature, pressure, and humidity to refine ballistic calculations for enhanced accuracy.
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Gen II Lightwave™ DSP Technology – Advanced ranging engine for ultra-fast and long-distance target acquisition.
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HyperScan Mode – Continuously updates four times per second for rapid ranging, ensuring quick and accurate measurements on moving or distant targets.
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RangeLock Feature – Displays the last range result when scanning distant targets, helping maintain focus on long-range objects.
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BDX 2.0 Bluetooth Connectivity – Seamlessly integrates with BDX-enabled devices like SIG SAUER riflescopes for automatic ballistic corrections.
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Multiple Target Modes – Choose between First, Best, Last, Fog, and Extended Range (XR) to optimise ranging performance in different conditions.
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Multiple Ranging Modes – Supports BDX-U, BDX-X, Angle Modified Range (AMR), Line of Sight (LOS), and Archery Mode for tailored ranging solutions.
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BDX External (BDX-X) Compatibility – Pairs with external devices like Kestrel Elite and Garmin Foretrex for extended ballistic calculations beyond 800 yards, incorporating factors such as Coriolis effect and spin drift.
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Lumatic™ Display – Automatically adjusts brightness for optimal visibility in changing light conditions.
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Segmented OLED Display – Provides a crisp, high-contrast readout for easy data interpretation in both daylight and low-light environments.
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BASEMAP App Integration – Allows users to drop remote waypoints and sync rangefinder data for improved navigation and tracking.
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Compact and Rugged Design – Features a lightweight polymer housing that’s both durable and ergonomic for extended field use.
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IPX-7 Waterproof Rating – Built to withstand harsh weather conditions, ensuring reliability in wet or extreme environments.
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CR123 Lithium Battery Powered – Provides long-lasting operation, keeping you ready for action when it matters most.
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Integrated Tripod Mount – Adds stability for long-range precision, especially useful in extreme distances or difficult conditions.
- KILO4K™ Rangefinding Binocular
- CR123 Battery (1)
- Premium Carry Pouch
- Quick Start Guide
- Ballistic Group Card
- Lanyard
- Sig Sauer Infinite Warranty
Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE
COURIERS
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We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number.
IN-STORE ITEMS
These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.
PRE-ORDER ITEMS
These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.
INTERNATIONAL DELIVERY & TAXES
In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.
NEED HELP?
If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk
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A NOTE ABOUT DPD SHIPMENTS:
- Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
- If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
- The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
- Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
- Please view the attached slides HERE for further information!