Optics & Scopes | Thermal ImagingArmasightSold by Sportsmans Guide

Armasight

Armasight Operator 640 1-4x35mm Thermal Clip-On Digital Reticle

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Thermal Clip-on

Designed to mount in front

Uses Armacore

640x480 thermal sensor and 35mm

Detection Range

Reaches up to 1300 meters

Quick-detach Mount

Supports rapid attachment and removal

Three-button Controls

Simplify operation in high-stress conditions

$3399.15
List Price: $3999.00
You Save: $599.85 (15%)
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SKU: WX2*0749094

Overview

This thermal clip-on is built for hunters and professionals who want to add thermal capability to a daytime optic without changing their setup or re-zeroing. It mounts in front of a 1-6x day scope and is suited for hunting, patrolling, and overwatch, with controls and mounting designed for straightforward use in the field. The ArmaCORE 640x480 sensor, 35mm germanium lens, and up to 1300-meter detection range provide thermal viewing in darkness, fog, smoke, and harsh weather, while multiple color palettes and image enhancement options help tailor the display to conditions. A quick-detach mount, USB-C connectivity, video and image capture, and up to 4 hours of runtime at 20°C round out a package focused on practical field use.

Why Hunters Choose the Armasight

Mounts Front

No re-zeroing required

Armacore 640x480

Thermal sensor and 35mm germanium

Detection Range

Reaches up to 1300 meters

Quick-detach Mount

Supports rapid attachment or removal

Intuitive 3-button

Controls simplify operation under high-stress

Key Features

  • Thermal clip-on designed to mount in front of a 1-6x day scope without re-zeroing.
  • Uses an ArmaCORE 640x480 thermal sensor and 35mm germanium lens.
  • Detection range reaches up to 1300 meters in darkness, fog, smoke, or harsh weather.
  • Quick-detach mount supports rapid attachment and removal in the field.
  • Three-button controls simplify operation in high-stress conditions.
  • Offers multiple color palettes and image detail enhancement for visual customization.
  • Includes video and image capture plus USB-C connectivity for external viewing.

Best Used For

  • Hunters using a 1-6x day scope who want thermal capability without re-zeroing
  • Military or law enforcement users needing a clip-on thermal for patrol or overwatch
  • Night hunters working in darkness, fog, smoke, or other reduced-visibility conditions
  • Users who value quick-detach mounting and simple three-button operation in the field
  • Shooters needing thermal video and image capture for documentation or review

Specifications

Battery Type2 x CR123A batteries
Body Materialhigh-strength aluminum alloy
Color Palettesmultiple color palettes
ConnectivityUSB-C
Controls3-button controls
Detection Rangeup to 1300 meters
Image Captureyes
Image Enhancementimage detail enhancement
Included AccessoriesOperator Clip-On, Quick Detach Mount, USB-C Cable, Thermal Zeroing Target, 2 x CR123A Batteries, Lens Cloth, Soft Case, Product Manual
Lens35mm germanium lens
Mount Typequick-detach mount
Re Zeroing Requiredno
Runtimeup to 4 hours at 20degC
Scope Compatibilitymounts in front of a 1-6x day scope
Thermal SensorArmaCORE 640x480
Video Captureyes

Pros

  • Mounts in front of a 1-6x day scope with no re-zeroing required.
  • ArmaCORE 640x480 thermal sensor and 35mm germanium lens provide thermal imaging capability.
  • Detection range reaches up to 1300 meters in challenging conditions.
  • Quick-detach mount supports rapid attachment or removal in the field.
  • Intuitive 3-button controls simplify operation under high-stress conditions.
  • Includes video and image capture, USB-C connectivity, and multiple color palettes.

Considerations & Trade-offs

  • Requires a compatible 1-6x day scope for front-mounted use, so it is not a standalone optic.
  • The clip-on format adds capability without re-zeroing, but it also means you are working through your existing day scope rather than using a dedicated thermal sight.
  • Runtime is listed at up to 4 hours at 20°C, so extended outings may require battery planning or spares.
  • The feature set includes video/image capture, USB-C connectivity, and multiple color palettes, which adds flexibility but also means more functions to manage in the field.

Suggested Comparisons

  • Thermal clip-on sight systems
  • Thermal monoculars
  • Digital night vision optics
  • Day scopes for clip-on use

Suggested Accessories

  • Clip-on thermal scope mount
  • CR123A batteries
  • USB-C cable
  • Soft case

Frequently Asked Questions

Will this clip-on work with my day scope without re-zeroing?

The product is designed to mount in front of a 1-6x day scope with no re-zeroing required.

What thermal sensor and lens does the Operator 640 use?

It uses the ArmaCORE(TM) 640x480 thermal sensor and a 35mm germanium lens.

How far can it detect targets?

The listed detection range is up to 1300 meters, depending on conditions.

Can I use it in poor visibility or darkness?

Yes. The description says it is designed to work in total darkness, fog, smoke, and harsh weather.

What comes in the box?

Included items are the Operator Clip-On, Quick Detach Mount, USB-C Cable, Thermal Zeroing Target, 2 x CR123A Batteries, Lens Cloth, Soft Case, and Product Manual.