AGM Spectrum 4K Mini

  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
  • AGM Spectrum 4K Mini
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AGM Spectrum 4K Mini

The Spectrum 4K Mini is a compact digital day/night riflescope that leverages a 3840×2160 CMOS sensor to deliver ultra-high-definition images. A 40 mm F/2.0 lens provides a 3.5× base magnification with continuous digital zoom up to 20.5×. You can switch between semi-circular and rectangular display modes and even select a faster 100 Hz refresh rate in 1080p mode for smoother tracking.

Unlike the LRF version, the Mini uses a stadiametric distance estimator instead of a laser rangefinder, keeping weight down to around 0.45 kg. The optic records 1080p video and audio to a built-in 32 GB EMMC drive, supports shot-activated recording and Wi-Fi streaming, and offers 10 reticle styles in eight colours.

Power comes from an internal rechargeable battery and one replaceable 18650 cell, providing up to 7.8 hours of runtime. The Spectrum 4K Mini is rated IP67 and backed by a three-year warranty.

MSRP: $845.00
PRICE: $795.00

  • Is This the Right Thermal for You?:

    If you want high-definition digital imaging for day and night hunts without the bulk of a laser rangefinder, the Spectrum 4K Mini is a compelling choice. It’s particularly well suited to hunters working within typical shooting distances who want to record video and rely on a stadiametric reticle for range estimation. The continuous zoom and selectable refresh rates make it comfortable to track moving targets. Because it uses a digital sensor rather than a thermal core, it can’t detect heat through cover and requires ambient light or an IR illuminator for nighttime use. Those needing an integrated rangefinder or ballistic calculator should look at the Spectrum LRF 4K.

  • Best For:

    • Hunters and shooters seeking a lighter 4K digital scope with day/night capability
    • Users who prefer a stadiametric range estimator over an integrated laser rangefinder
    • Recording hunts with on-board video/audio and sharing via Wi-Fi
    • Scenarios where a 7.8-hour dual-battery runtime is sufficient

  • Not Ideal For:

    • Those who require thermal imaging or an integrated laser rangefinder
    • Ultra-long-range shooters who need ballistic calculations and holdover suggestions
    • Users who need more than 32 GB of internal storage or plan to record many hours of 4K footage

  • How This Model Compares:

    The 4K Mini trims weight and bulk compared with the Spectrum LRF 4K. It omits the laser rangefinder and ballistic calculator, reduces internal storage from 64 GB to 32 GB and uses a 40 mm lens with a 3.5-20.5× zoom range. In return, it’s about 0.73 kg lighter and adds the ability to switch the display to a rectangular mode and increase refresh rate to 100 Hz at 1080p. Compared with thermal scopes like the Rattler or Secutor series, the 4K Mini offers vivid colour imaging but cannot detect heat signatures.

    • Versus SPEC50-4K: the Mini forgoes a laser rangefinder and ballistic calculator, has a smaller 40 mm lens, 32 GB storage and shorter 7.8-hour battery life but weighs less and supports a 100 Hz refresh mode.
    • Versus ADDE35-384-2: the Adder V2 is a thermal riflescope with heat detection and 64 GB storage; the Mini is digital, requiring light or IR illumination.
    • Versus RATT25-384: the RattlerV2 25-384 is a compact thermal rifle scope with 2× base magnification and 1.2 km detection; the Mini is a digital scope with 4K resolution and stadiametric range estimation.

  • What You Actually Get in Real-World Use:

    On the range, the Spectrum 4K Mini impresses users with crisp, natural-looking images and a responsive user interface. The ability to switch between semi-circular and rectangular displays helps tailor the view to the shooter’s preference, and the 100 Hz refresh mode at 1080p reduces motion blur when tracking fast game.

    The stadiametric rangefinder is simple to use once you know your target’s approximate size, though it doesn’t match the precision of a laser. The dual-battery system lasts most of a hunting day, and the 32 GB storage is adequate for recording highlights. At just over a pound, the Mini adds minimal weight to the rifle, and the IP67 rating ensures it survives bad weather.

  • FAQS

    • Does the Spectrum 4K Mini have a built-in laser rangefinder?
      No. The Mini relies on a stadiametric reticle for distance estimation. For a built-in laser rangefinder and ballistic calculator, consider the Spectrum LRF 4K.
    • Can the 4K Mini operate in complete darkness?
      As a digital scope it requires ambient light or an infrared illuminator. It comes with a day/night mode and supports external IR illumination, but it doesn't see through fog or brush like a thermal optic.
    • What is the magnification range and field of view?
      The Mini offers a 3.5× base magnification with continuous digital zoom up to 20.5×. With the rectangular display the field of view is 10.7°×6.1° and with the semi-circular display it's 10°×6.1°.
    • How long does the battery last?
      The built-in battery and included 18650 cell provide up to 7.8 hours of run time when Wi-Fi is off. You can recharge via USB-C or swap the 18650 cell in the field.
    • What is included in the box?
      The package includes the scope, one 18650 battery, battery charger, power adapter, Type-C USB cable, lens cloth, quick start guide and user manual.

  • Key Features at a Glance:

    • 3840×2160 CMOS sensor with 1920×1080 OLED display
    • 40 mm F/2.0 lens; 3.5×‑20.5× continuous digital zoom with 0.5× increments
    • Semi-circular or rectangular display modes and optional 100 Hz refresh rate
    • Stadiametric distance measurement; 10 reticles in eight colours
    • On-board 1080p video/audio recording, shot-activated recording and 32 GB internal memory
    • Wi-Fi hotspot and AGM Connect app compatibility
    • Dual power system (internal battery + 18650) providing up to 7.8 h runtime
    • Lightweight (0.45 kg) and IP67 waterproof with a three-year warranty

  • Detailed Product Description:

    AGM’s Spectrum 4K Mini brings the clarity of 4K digital imaging to a compact riflescope platform. Its 3840×2160 CMOS sensor and 0.49-inch OLED display create a crisp, full-colour picture, while a 3.5× base magnification and continuous digital zoom to 20.5× let you adapt to different ranges.

    Unlike the LRF version, the Mini forgoes a laser rangefinder in favour of a stadiametric reticle, which estimates distance based on the size of a known target. The 40 mm lens keeps overall length and weight down, and you can choose between semi-circular and rectangular display modes; a 100 Hz refresh rate at 1080p provides smooth viewing when tracking fast game.

    Video and audio recording is built in, with 32 GB of internal storage and shot-activated capture for hands-free documentation. Powered by an internal battery and a replaceable 18650 cell, the scope runs up to 7.8 hours per charge and can accept external USB-C power. At only around 0.45 kg, the Spectrum 4K Mini is easy to mount and is rated IP67 for water and dust protection. AGM backs it with a three-year warranty.

  • Technical Specifications:

    • Sensor: 3840×2160 CMOS; display: 1920×1080 OLED
    • Magnification: 3.5×‑20.5× with continuous zoom (0.5× steps)
    • Lens: 40 mm F/2.0; field of view 10.7°×6.1° (rectangular) or 10°×6.1° (semi-circular)
    • Refresh rate: 50 Hz at 4K, 100 Hz at 1080p
    • Distance measurement: stadiametric (no laser); 10 reticles, 8 colours
    • Recording: 1080p video and audio; shot-activated; 32 GB EMMC storage
    • Battery: built-in rechargeable battery + replaceable 18650; up to 7.8 h runtime
    • Weight: approx. 0.45 kg; IP67 rating
    • Operating temperature: –22 to +131 °F