Leupold BX-4 Range HD Gen 2 TBR/W 10x42 Rangefinder Binoculars - Shadow Gray, 185699

The Leupold BX-4 Range HD Gen 2 TBR/W 10x42 Rangefinding Binoculars, 185699 combine premium HD optical performance with advanced laser ranging technology for hunters who need to locate game, determine accurate distances, and make informed shooting decisions. Featuring 10x magnification, Leupold's Elite Optical System, and True Ballistic Range/Wind (TBR/W) technology, these binoculars deliver exceptional clarity and reliable distance measurements in demanding hunting conditions.

Built for serious hunters, the BX-4 Range HD Gen 2 eliminates the need to switch between binoculars and a handheld rangefinder. Its integrated DNA ranging engine measures reflective targets out to 4,000 yards, trees to 2,000 yards, and deer-sized targets to 1,300 yards. A high-contrast red OLED display provides clear ranging information, while the Elite Optical System delivers excellent light transmission, edge-to-edge HD clarity, and glare reduction for extended glassing sessions.

With advanced features including TBR/W ballistic calculations, Archer's Advantage technology, customizable Form-Fit eyecups, and a programmable power button, these rangefinding binoculars are designed for both rifle and archery hunters. Waterproof and fogproof construction provides dependable performance in changing weather conditions, making the BX-4 Range HD Gen 2 a versatile choice for everything from whitetail hunting to open-country western pursuits.

Explore our selection of Leupold binoculars to compare traditional hunting binoculars and rangefinding models designed for different hunting applications.

Best Uses

• Western big-game hunting where long-distance glassing and accurate ranging are essential
• Deer, elk, and antelope hunting in open terrain and mountainous environments
• Long-range rifle hunting requiring angle-compensated ballistic distance calculations
• Bowhunting from elevated tree stands or steep terrain using Archer's Advantage technology
• Low-light hunting conditions where optical brightness and image clarity are important
• Hunters wanting to combine premium binoculars and a laser rangefinder into one device

Key Features

• Elite Optical System – Delivers excellent dawn-to-dusk light transmission, advanced glare reduction, and outstanding resolution for bright, detailed images in challenging lighting conditions.
• High Definition Optical Performance – Provides sharp image resolution, natural color reproduction, and edge-to-edge clarity to help hunters identify and evaluate game at extended distances.
• DNA Ranging Engine – Leupold's advanced ranging technology provides fast, accurate distance measurements with a maximum ranging capability of 4,000 yards on reflective targets, 2,000 yards on trees, and 1,300 yards on deer-sized targets.
• True Ballistic Range/Wind (TBR/W) – Calculates ballistic shooting distances that account for steep shooting angles and rifle ballistics. Also provides a calculated hold point for a 10-mph crosswind at a 90-degree angle out to 800 yards.
• Archer's Advantage Technology – Uses arrow weight, arrow velocity, and peep height to calculate customized angle-compensated ranges for bowhunters shooting from elevated positions or across steep terrain.
• Bow Mode – Provides practical angle-compensated ranging for archery applications, including tree-stand hunting and western spot-and-stalk situations.
• High-Contrast Red OLED Display – Displays ranging information with excellent contrast and visibility in changing lighting conditions.
• Last Target Mode – Prioritizes the farthest target detected along the laser's path, helping reduce interference from rain, snow, fog, or foreground objects.
• Line of Sight (LOS) Mode – Displays the direct straight-line distance to the target without applying angle compensation.
• Interchangeable Form-Fit Eyecups – Includes three eyecup styles for personalized viewing comfort, including winged eyecups for blocking stray light, medium eyecups for general use, and low-profile eyecups for eyeglass wearers.
• Programmable Power Button – Allows users to interchange power and mode button functions for convenient right-handed or left-handed operation.
• Easy-Grip Button Standoffs – Raised controls make the buttons easier to locate and operate while wearing hunting gloves.
• Tripod Compatible – Integrated 1/4-20 rotatable tripod adapter port provides convenient mounting for stable, extended glassing sessions.
• Smooth Focusing System – Provides precise focus adjustments for sharp, detailed observation at different distances.
• Waterproof and Fogproof Construction – Advanced internal sealing and gas-filled construction protect the optical system against moisture, temperature changes, and challenging weather conditions.

Why These Rangefinding Binoculars Stand Out

The Leupold BX-4 Range HD Gen 2 10x42 stands out by combining the optical performance of premium hunting binoculars with the convenience of an integrated laser rangefinder. Instead of carrying and switching between two separate devices, hunters can locate game, evaluate the animal, and determine the distance without taking their eyes away from the binoculars.

One of its greatest advantages is the combination of TBR/W and Archer's Advantage technology. Rifle hunters benefit from ballistic calculations that account for shooting angles and provide useful wind-hold information, while bowhunters can calculate distances based on their individual archery setup. This makes the BX-4 Range HD Gen 2 especially versatile for hunters who pursue game with both rifles and bows.

The 10x42 configuration also offers a practical balance of magnification, field of view, and portability. With a 334-foot field of view at 1,000 yards, these binoculars provide a wider viewing area than many higher-magnification configurations, making it easier to locate moving game and scan large sections of terrain.

For hunters who spend long hours glassing, Leupold's Elite Optical System, customizable eyecups, and tripod compatibility add meaningful comfort and usability. The result is a premium rangefinding binocular designed to handle demanding hunting conditions while simplifying the process of spotting and ranging game.

Specifications

• Manufacturer: Leupold
• Model: BX-4 Range HD Gen 2 TBR/W
• Product Number: 185699
• Magnification: 10x
• Objective Lens Diameter: 42mm
• Optical System: Elite Optical System
• Field of View @ 1,000 Yards: 334 ft
• Angular Field of View: 6.2 degrees
• Eye Relief: 17mm
• Exit Pupil: 4.2mm
• Close Focus Distance: 13 ft
• Interpupillary Distance: 56-76mm
• Maximum Range - Reflective Targets: 4,000 yds
• Maximum Range - Trees: 2,000 yds
• Maximum Range - Deer: 1,300 yds
• Minimum Ranging Distance: 12 yds
• Ranging Accuracy to 125 Yards: ±0.7 yd
• Ranging Accuracy to 1,000 Yards: ±1 yd
• Ranging Accuracy Beyond 1,000 Yards: ±0.2%
• Rifle Angle Compensation: TBR/W
• Archery Angle Compensation: Bow Mode with Archer's Advantage
• Display Type: OLED
• Display Color: Red
• Battery Type: CR2
• Battery Life: Up to 3,000 actuations
• Laser Classification: Class 1M
• Tripod Compatible: Yes, 1/4-20 threaded connection
• Length: 5.9 in
• Weight: 37 oz
• Construction: Waterproof and Fogproof

Complete your hunting setup by exploring our Leupold rifle scopes for dependable optical performance in the field. You can also compare additional models in our Leupold rangefinders collection to find the right combination of ranging capabilities and ballistic features for your hunting style.

Not sure what the numbers on binoculars mean? Our optics buying guides and resources provide helpful information about binocular magnification, objective lens size, field of view, and choosing optics for different hunting conditions.

Frequently Asked Questions

How far can the Leupold BX-4 Range HD Gen 2 10x42 range?
The BX-4 Range HD Gen 2 can measure reflective targets out to 4,000 yards, trees to 2,000 yards, and deer-sized targets to 1,300 yards. Actual ranging performance depends on target reflectivity, atmospheric conditions, and other environmental factors.

What is the advantage of TBR/W technology?
Leupold's True Ballistic Range/Wind technology calculates ballistic shooting distances that account for steep shooting angles and rifle ballistics. It also provides a calculated hold point for a 10-mph crosswind at a 90-degree angle out to 800 yards, helping hunters make more informed shooting adjustments.

Can these rangefinding binoculars be used for bowhunting?
Yes. The BX-4 Range HD Gen 2 includes Bow Mode and Archer's Advantage technology. Archer's Advantage uses your arrow weight, arrow velocity, and peep height to provide customized angle-compensated ranging information for archery applications.

Are the Leupold BX-4 Range HD Gen 2 binoculars good for low-light hunting?
Yes. Leupold's Elite Optical System is designed to provide excellent light transmission, glare reduction, and HD image clarity. These features are particularly beneficial when glassing during early morning and late evening hunting conditions.

Can the BX-4 Range HD Gen 2 be mounted on a tripod?
Yes. These binoculars feature an integrated 1/4-20 rotatable tripod adapter port, allowing them to be mounted on compatible tripod equipment for more stable viewing during extended glassing sessions.

Are these binoculars waterproof and fogproof?
Yes. Leupold designed the BX-4 Range HD Gen 2 with waterproof and fogproof construction to withstand moisture, temperature changes, and demanding outdoor hunting conditions.

What battery does the BX-4 Range HD Gen 2 use?
The integrated rangefinder operates on a CR2 battery and is rated for up to 3,000 ranging actuations under specified conditions.