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One device. All the range and ballistic data you need to make the shot of a lifetime, every time. For precision shooters and long-range hunters, the fully loaded Razor HD 4000 GB accelerates your speed to target, helping you range with first-shot confidence at pushbutton speed. Rugged. Reliable. Whether targeting a trophy above the treeline, across an open prairie, or ringing steel out to 4000 yards, the Razor® HD 4000 GB delivers all the range, ballistic, and environmental data you need for absolute accuracy when and wherever opportunity happens.

  • Premium Carry Case
  • Bungee Cord Lanyard
  • Lens Cloth
  • Utility Clip
  • 2mm Hex Wrench
  • CR2 Battery

RAZOR HD 4000 GB Features

In-Display Wind/Drop Solutions Equipped with the accurate GeoBallistics® ballistics solver backed by a full up-to-date bullet database.
Customize Ballistics Profiles Customize ballistics profiles via the GeoBallistics® App or use one of three preloaded profiles for popular cartridges.
On-Board Environmental Sensors On-Board compass, humidity, barometric pressure, and exposed temperature sensors for fast acclimations.
Two Wind Modes Features Full Cross Wind Mode and the Patented Wind Bearing Capture Mode.
Pairs with Third-Party Devices Pairs with Kestrel® weather meter devices.
HD Optical System Optimized with select glass elements to deliver exceptional resolution, cut chromatic aberration and provide outstanding color fidelity, edge-to-edge sharpness and light transmission.
XR™ Plus Lens Coatings Ultimate anti-reflective coatings on all air-to-glass surfaces provide maximum light transmission for peak clarity and the pinnacle of low-light performance.
Magnesium Chassis Decreases weight and increases strength.
Easy-to-Use Menu Intuitive, easy-to-use menus feature a simple, clean illuminated display.
Diopter Adjusts for differences in a user’s eyes. Located on the eyepiece.
Rugged Design Built to handle tough situations. Compact and light weight.
ArmorTek® Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.
Waterproof O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments.
Tripod Adaptable Compatible with a tripod adapter, allowing use on a tripod or car window mount.
Rubber Armor Provides a secure, non-slip grip, and durable external protection.
Ranging Format Range in yards or meters.

RAZOR HD 4000 GB Specs

Magnification 7x
Objective Lens Diameter 25 mm
Range Reflective (yards) Up to 4000 yds.
Range Tree (yards) Up to 2500 yds.
Range Deer (yards) Up to 2200 yds.
Accuracy > 200
Max Angle Reading +/- 89 degrees
Linear Field of View 341′
Angular Field of View 6.5 degrees
Eye Relief 17.5mm
Length 4.4″
Height 3.2″
Width 1.7″
Weight 10.1 oz.


The Razor® HD 4000 GB utilizes the on-board GeoBallistics® solver to provide in-display wind/drop solutions and line of sight range when in Ballistics (BAL) Mode.

Reticle Details Razor® HD 4000 GB

Product Manual (PDF)

Find our other rangefinder options here

Weight 48 oz
Dimensions 8 × 4 × 4 in


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