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10% OFF STOREWIDE WITH CODE: SURVIVAL10 exclusions apply*
10% OFF STOREWIDE WITH CODE: SURVIVAL10 exclusions apply*

GPO BX731 RANGEGUIDE 10×40HD Rangefinding Waterproof Binocular

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Authorized GPO USA Dealer

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Lifetime Customer Support

Lifetime Customer Support

Original price $1,299.99 - Original price $1,299.99
Original price
$1,299.99 - $1,299.99
Current price $1,299.99

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Discover cutting-edge optical performance with the GPO RANGEGUIDE 10×40 Rangefinding Binoculars, a marvel of precision engineering and high-tech features designed for the most demanding outdoor enthusiasts.

Key Features:

  • Superior Optical Clarity: Equipped with a 40mm objective lens and enhanced by GPObright™ high-transmission lens coatings for outstanding brightness in low-light conditions.
  • Advanced Rangefinding Technology: Offers an impressive ranging capability from 6 yards to over 3,500 yards, coupled with a rapid response time of just 0.25 seconds.

  • Robust Construction: Features a durable magnesium body with a rubber armor coating, designed to withstand tough environmental conditions.

  • True-Range Angle Technology: Accurately compensates for angles, providing precise measurements crucial for long-range shooting.

  • Scan Mode: Delivers three readings per second, ensuring constant updates on moving targets or varying distances.

  • Environmental Readings: Includes temperature, humidity, and barometric pressure sensors to aid in long-range shooting accuracy.

  • OLED Display: Comes with nine brightness settings and an auto-brightness feature for clear viewing in any light conditions.

  • Hydrophobic Coating: PASSIONdrop technology repels water and debris from the lens surfaces, maintaining clarity during adverse weather.

  • Waterproof and Fogproof: Ensures reliable performance in all weather conditions.

Lifetime Warranty:

  • Backed by GPO’s Spectacular Lifetime Warranty, ensuring continued excellence and support.

The GPO RANGEGUIDE is not just a tool but a revolution in the field of optics, perfect for those who seek unparalleled precision in rangefinding and optical performance. Whether you are tracking wildlife or measuring distant targets, these binoculars are designed to deliver unmatched accuracy and durability.

  • Magnification: 10x
  • Objective Diameter: 40mm
  • Ocular Diameter: 20mm
  • Exit Pupil Diameter: 4.0mm
  • Eye Relief: 16mm (Good)
  • Field of View (FOV) @ 1000 Yards: 330 ft
  • Close Focus: 16 ft
  • Interpupillary Distance: Adjustable from 58mm to 78mm
  • Diopter Adjustment Range: +4 to -4
  • Prism Type: Schmidt-Pechan
  • Housing Material: Magnesium
  • Waterproof: Rated at 100 mbars
  • Light Transmission (Daylight): 0.87
  • Dimensions (HxWxL): 2.3 in x 5.0 in x 5.2 in
  • Weight: 26 oz
More Information

Included Accessories:

  • Neoprene neck strap
  • Microfiber cleaning cloth
  • Ocular and objective lens covers
  • Hard case
  • CR-2 Battery


Shipping & Delivery

We offer free shipping on all orders within the 48 contiguous United States. We do not deliver to P.O. boxes or addresses outside the U.S.

  • Processing Time: 1 business day.
  • Shipping Time: 5-8 business days.
  • Estimated Total Delivery Time: 6-9 business days.

For more details, please visit our Shipping & Delivery page.

Return & Refund Policy

GPO USA Does not accept returns past 15 days from the date of delivery.

  • To initiate a return, please email [email protected] with your name, order number, and reason for the return, or call our support team at (888)-363-5666.
  • Some returns may be subject to a 20% restocking fee, with each return evaluated on a case-by-case basis depending on the manufacturer or supplier.
  • Approved refunds will be issued to the original payment method used when placing your order.

For more details, please refer to our Return & Refund policy.

Need More Help? Contact Us.

Our expert can help guide you through your purchase.

(888)-363-5666 | Live Chat Support