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About this product
Rangefinding Binocular • 10x42 • TBR/W
Leupold BX-4 Range HD Gen 2 TBR/W 10x42 Rangefinder Binoculars
The Leupold BX-4 Range HD Gen 2 TBR/W 10x42 is built for hunters and shooters who want to glass, range and make confident distance calls without swapping between binoculars and a separate rangefinder. It combines Leupold’s HD optical performance, a powerful laser rangefinder, red OLED display, Bow Mode, Archer’s Advantage and True Ballistic Range/Wind technology in one rugged field-ready optic.
10x42 HD glassUp to 4,000 yd reflective rangeTBR/W rifle ballisticsBow Mode + Archer’s AdvantageRed OLED displayTripod compatible
Glass and Range in One Motion
When seconds matter, the BX-4 Range HD Gen 2 lets you stay behind the glass and range directly through the binocular. The 10x42 configuration gives a strong balance of magnification, field of view and low-light usability, making it ideal for stalking, open-country hunting, ridge glassing and general long-distance observation.
Its high-contrast red OLED display is designed to stay readable in changing light, while the HD optical system helps maintain clarity and contrast during long glassing sessions.
4,000 yd Reflective target range
2,000 yd Tree ranging capability
1,300 yd Deer-sized target range
3,000 Battery actuations
Key Features
HD
Elite Optical System
Built for bright, sharp and high-contrast viewing, with edge-to-edge clarity that helps reduce eye strain during extended observation.
RF
Built-In Rangefinder
Range directly through the binocular with maximum capability up to 4,000 yards on reflective targets, 2,000 yards on trees and 1,300 yards on deer-sized targets.
T
TBR/W Ballistics
True Ballistic Range/Wind technology provides ballistically calculated solutions for rifle hunters, including support for steep-angle shooting scenarios.
B
Bow Mode
Designed for archery use, Bow Mode uses angle compensation to help provide practical equivalent distances for uphill and downhill shots.
A
Archer’s Advantage
Archer’s Advantage allows setup around bow-specific information such as arrow weight, arrow velocity and peep height for more tailored archery range calculations.
☔
Waterproof and Fogproof
Built for demanding field conditions, with sealing and internal protection designed to keep the optic clear through wet, cold and changing environments.
Built for Hunters Who Move Fast
The BX-4 Range HD Gen 2 is designed to cut down on gear changes in the field. Instead of locating game with binoculars, lowering them, grabbing a rangefinder and trying to reacquire the target, this unit lets you identify and range with the same optic.
10x magnification gives useful reach while maintaining a practical field of view.
42 mm objective lenses balance brightness, portability and all-day carry comfort.
Red OLED display provides crisp, high-contrast readouts.
Programmable power button allows left- or right-handed operation.
Interchangeable Form-Fit eyecups help customise comfort and block stray light.
Best suited for: deer hunting, open-country glassing, bowhunting, rifle hunting, stalking, ridgeline observation, long-distance target ranging and anyone wanting one optic that combines quality binocular performance with accurate ranging capability.
Ranging and Ballistic Modes
The BX-4 Range HD Gen 2 TBR/W is more than a simple line-of-sight rangefinder. Its ballistic modes are designed to support both rifle and archery use, making it a flexible choice for hunters who move between different seasons and setups.
Mode / Function
What It Does
TBR/W
Provides ballistically calculated ranges for rifle use, including steep-angle shooting scenarios and wind-hold information.
Bow Mode
Designed for archery, giving angle-compensated distance information for more practical uphill and downhill shot decisions.
Archer’s Advantage
Allows bow-specific setup using information such as arrow weight, arrow velocity and peep height.
LOS Mode
Provides straight-line distance to the target without incline or decline compensation.
Last Target
Helps prioritise the farthest target along the laser path, useful when ranging through rain, snow, fog or foreground clutter.
What’s in the Box
Included Item
Details
Main optic
Leupold BX-4 Range HD Gen 2 TBR/W 10x42 Rangefinder Binoculars
Eyecups
Standard / Form-Fit eyecup options, including winged eyecups where supplied
Lens protection
Objective lens covers and rainguard / eyepiece cover
Carry system
Harness case / carry case where supplied by the distributor pack
Cleaning accessory
Microfibre cleaning cloth
Power
CR2 battery
Documentation
Instruction manual / setup documentation
Note: included accessories can vary slightly by distributor shipment. Please confirm final package contents if a specific accessory is required.
Comprehensive Specifications
General
Product name
Leupold BX-4 Range HD Gen 2 TBR/W 10x42MM
Product type
Rangefinding binoculars
Manufacturer part number
185699
Series
BX-4 Range HD Gen 2
Configuration
10x42
Primary use
Hunting, shooting, bowhunting, open-country glassing and rangefinding
Colour / finish
Shadow Gray / grey finish
Optical Performance
Magnification
10x
Objective lens diameter
42 mm
Exit pupil
4.2 mm
Eye relief
17 mm
Linear field of view
334 ft at 1000 yd / approx. 111 m at 1000 m
Angular field of view
6.2°
Close focus distance
13 ft / approx. 4.0 m
Interpupillary distance
56 mm to 76 mm
Optical system
Leupold Elite Optical System with HD clarity
Rangefinder System
Display type
OLED
Display colour
Red OLED display
Minimum ranging distance
12 yd / approx. 11 m
Maximum range: reflective targets
4,000 yd / approx. 3,658 m
Maximum range: trees
2,000 yd / approx. 1,829 m
Maximum range: deer-sized targets
1,300 yd / approx. 1,189 m
Accuracy to 125 yd
0.7 yd
Accuracy to 1000 yd
1 yd
Accuracy above 1000 yd
0.2%
Laser classification
Class 1M
Ballistic and Hunting Features
Rifle angle compensation
TBR/W
Archery angle compensation
Bow Mode
Archer’s Advantage
Yes
Line of Sight mode
Yes
Last Target mode
Yes
Programmable power button
Yes, supports left- or right-handed operation
Build and Handling
Tripod compatible
Yes, built-in 1/4-20 tripod adapter port
Eyecups
Interchangeable Form-Fit eyecups
Focus system
Central focus wheel
Waterproof / fogproof
Yes
Approx. length
5.9 in / approx. 150 mm
Approx. weight
37 oz / approx. 1,049 g
Power
Battery type
CR2
Battery life
Approx. 3,000 actuations
Why Choose the BX-4 Range HD Gen 2 10x42?
Choose the 10x42 model if you want a practical field binocular that still gives serious ranging capability. It offers a wider, more manageable view than higher-magnification rangefinding binoculars, while still giving enough reach for confident identification and distance readings across hillsides, bush edges, paddocks and open country.
For hunters who want fewer tools, less movement and faster target confirmation, the BX-4 Range HD Gen 2 TBR/W is a smart all-in-one solution: quality glass, accurate ranging and useful ballistic data in one compact optic.