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Alpen Optics

Apex LRF 35mm Mounted Thermal Riflescope

$2,899.99 USD

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Apex LRF 35mm Mounted Thermal Riflescope
$2,899.99 USD
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Apex LRF 35mm Mounted Thermal Riflescope

Description

The Alpen Optics Apex LRF 35mm Mounted Thermal Riflescope is a precision rifle-mounted thermal optic built for hunters and shooters who demand performance when it matters most. Engineered around a 640x512, 12 µm pixel pitch thermal sensor with sensitivity rated at less than 20 mK, this scope delivers exceptional heat detection in total darkness, dense foliage, and adverse weather conditions. The integrated laser rangefinder extends your effective reach to 1000 meters, while the 35mm objective provides a detection range of up to 1800 meters - giving you a decisive edge in the field.

Designed to mount directly to your rifle and particularly well-suited to the AR platform, the Apex LRF is as rugged as it is capable. A high-resolution OLED display, six selectable color palettes, multiple reticle styles, and five zeroing profiles ensure you can dial in your setup for any scenario. Recoil-activated video recording, built-in Wi-Fi for live streaming, and dual rechargeable batteries delivering up to 15 hours of runtime round out a feature set that is hard to match at any price point.

Key Features

  • 640x512 Thermal Sensor: 12 µm pixel pitch with less than 20 mK NETD sensitivity for outstanding heat detection in complete darkness or heavy cover.
  • Integrated Laser Rangefinder (LRF): Accurate ranging up to 1000 meters, combining your thermal optic and rangefinder into a single streamlined package.
  • 1800m Detection Range: The 35mm objective lens delivers reliable target detection at distances up to 1800 meters.
  • High-Resolution OLED Display: 1440x1080 screen with six color palette options - black hot, white hot, green, iron hot, red hot, and sepia - for vivid, high-contrast imaging.
  • Digital Magnification: Selectable 1x, 2x, 4x, and 8x digital zoom for flexible target identification at varying ranges.
  • Multiple Reticle Styles and Five Zeroing Profiles: Customizable reticle patterns and colors paired with five independent zero profiles for precision shooting across different loads or rifles.
  • Recoil-Activated Video Recording: Automatically starts recording on shot, with 32GB of internal storage to capture every hunt.
  • Built-In Wi-Fi: Live stream your thermal view to a connected device for partner coordination or real-time review.
  • Up to 15 Hours of Runtime: Dual rechargeable 18650 battery system keeps you in the field through long hunts and extended operations.
  • Waterproof and Shockproof Construction: Built to endure demanding field conditions, recoil, rain, and rough terrain without missing a beat.

Objective Size Options & Which to Choose

  • 35mm (This Model): Delivers a detection range of up to 1800 meters in a more compact and lightweight form factor. Ideal for predator hunters, hog hunters, and AR-platform shooters who want a capable thermal solution that is easy to maneuver and handle in the field.
  • 50mm: Extends the detection range to an impressive 2600 meters with a larger objective for enhanced light-gathering and thermal resolution at extreme distances. Best suited for long-range shooters, open-country hunters, and those targeting game at the outer limits of engagement.

What's Included

  • Apex LRF 35mm Mounted Thermal Riflescope
  • Rechargeable 18650 battery (x1)

Why You'll Love It

The Alpen Optics Apex LRF 35mm is a serious piece of kit for hunters and shooters who refuse to let darkness or terrain dictate the outcome. Alpen has built a reputation for delivering premium optics performance at a price that respects the buyer, and the Apex LRF carries that tradition forward with confidence. Whether you are running predator calls at midnight or glassing a dark tree line for hogs, this scope lets you detect, range, and engage targets with a single integrated system. The recoil-activated recording means every shot is documented automatically, and Wi-Fi connectivity keeps your team in the loop without breaking your focus. With up to 15 hours of battery life, rugged waterproof and shockproof construction, and a thermal sensor class typically found in much more expensive units, the Apex LRF 35mm is a trustworthy companion for serious field work season after season.

Product Specifications

View Product Specs
Item Number ATH635
Objective Lens 35mm
Effective Pixels 640x512
Pixel Pitch 12 µm
Sensitivity (NETD) ≤20 mK
Screen OLED, 1440x1080
Digital Magnification 1x, 2x, 4x, 8x
Field of View (Degrees) 12.4 - 10
Detection Distance 1800m
Laser Rangefinder (LRF) Distance 1000m
Close Focus 3m
Eye Relief 44mm
Reticle Multiple Patterns and Colors
Zeroing Profiles 5
Wi-Fi Yes
Internal Storage 32GB
Battery Type Rechargeable 18650 x1 (6.5 hours per battery; up to 15 hours total)
Weight 608g
Warranty United States Limited Warranty (Alpen Optics)
Shipping Ships via standard carrier; free U.S. shipping on orders $70+
Assembly Required No - mounts directly to rifle rail

FAQ

Is the Apex LRF 35mm compatible with my AR-platform rifle?

Yes - the Apex LRF is specifically designed to mount directly to a rifle and is particularly well-suited to the AR platform. It uses a standard mounting interface, so as long as your rifle has a compatible rail, you should be able to attach it without any special adapters.

What is the difference between the 35mm and 50mm models?

The primary difference is detection range. The 35mm model detects targets at up to 1800 meters, while the 50mm model extends that to 2600 meters. The 50mm's larger objective also gathers more thermal energy, which can improve image clarity at extreme distances. If you are hunting in open, wide-ranging terrain, the 50mm is worth considering. For most predator and hog hunting scenarios, the 35mm is more than capable and offers a more compact package.

How does recoil-activated video recording work?

The scope's built-in accelerometer detects the shock of recoil when you fire and automatically triggers video recording. This means you do not need to manually start recording before each shot - the scope handles it for you. All footage is saved to the 32GB of internal storage and can be transferred wirelessly via Wi-Fi to your device.

Can I use this scope in the rain or wet conditions?

Yes. The Apex LRF is built to be waterproof and shockproof, making it suitable for use in rain, heavy dew, and other wet field conditions. Its rugged construction is designed to hold up to the demands of serious hunting and shooting use.

How long does the battery last, and can I swap batteries in the field?

The scope uses a rechargeable 18650 battery system. With two batteries, you can achieve up to 15 hours of thermal imaging runtime. The 18650 format is a common rechargeable cell, which means spare batteries are easy to find and carry in the field for extended trips.

Does this scope replace my daytime optic, or does it add on to it?

The Apex LRF 35mm is a standalone rifle-mounted thermal riflescope - it is intended to be used in place of a traditional daytime optic when thermal imaging is needed. It is not a clip-on device that attaches in front of an existing scope. If you are looking for a thermal clip-on solution, Alpen also offers the Apex 640 50mm Riflescope Thermal Clip-On.
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