ATN Thor 4
VS
Monstrum G2

VS

ATN Thor 4
The ATN ThOR 4 Smart HD Thermal Hunting Scope represents a leap in thermal imaging technology, combining traditional optic design with advanced features for the modern hunter. Powered by the Obsidian IV Dual Core Processor, it delivers exceptional thermal sensitivity, improved resolution, and contrast for precise target detection in any environment. With a thermal zoom range from 1.25-5x to 4-40x, it adapts effortlessly to varying distances, while Black Hot, White Hot, and Color viewing modes enhance visibility. This scope is packed with smart features like a built-in Ballistics Calculator for accurate POI correction, recoil-activated video recording, and compatibility with Micro SD cards up to 64GB. The long-lasting power management system ensures 16+ hours of operation, while the 3" eye relief and multiple reticle options provide comfort and versatility. Accessories like the ATN ABL Laser Range Finder, Quick Detach Mount, and Battery Pack Kit expand functionality, making the ThOR 4 an invaluable tool for hunters and outdoor enthusiasts.
Monstrum G2
The G2-BFFPS62450-R is a high-performance tactical scope from the G2 line, featuring a first focal plane reticle and an adjustable objective (AO) lens. With a magnification range of 6-24x, it allows for precise targeting at distances over 1500 yards. The package includes heavy-duty high-profile scope rings, spring-loaded flip-up lens covers, and a honeycomb shade. The scope's functionally designed rangefinder reticle facilitates faster range estimation and holdover correction, remaining visible in black or illuminated in red or green. Equipped with 1/4 MOA windage and elevation adjustments that can be reset to zero, it also has a side focus dial for easy AO adjustments.
Basic Details
| Brand | Color | Style | Sport | Item Weight | Material | |
|---|---|---|---|---|---|---|
| ATN Thor 4 | ATN | Black | 1-10x | Hunting | 1.9 Pounds | Aluminum |
| Monstrum G2 | Monstrum | Black or FDE | Tactical | Hunting | 1.5 Kilograms | Aluminum |
Magnification & Range
| Magnification | Parallax Setting | |
|---|---|---|
| ATN Thor 4 | 1-5x | Adjustable |
| Monstrum G2 | 6-24x | 1500+ Yards |
Performance Insights
| Eye Relief | Zoom Ratio | FOV | Night Vision | |
|---|---|---|---|---|
| ATN Thor 4 | 3.5 inches | Variable | Variable | No |
| Monstrum G2 | 4 - 4.5 in | 6:1 | 19.0 - 3.6 degrees | No |
To Calculate scope clicks: Let’s check out Scope Clicks Calculator
Diameter & Tube Size
| Tube Size | Tube Diameter | Objective Diameter | |
|---|---|---|---|
| ATN Thor 4 | N/A (Digital thermal scope) | N/A | 50mm |
| Monstrum G2 | 30mm | 30mm | 50mm |
Compatibility
| Compatible Devices | Mounting Type | |
|---|---|---|
| ATN Thor 4 | Rifle | Cantilever Mount |
| Monstrum G2 | Rifle | Picatinny Mount |
Additional Features
| Reticle | Max Elevation Adjustment | |
|---|---|---|
| ATN Thor 4 | Smart Mil Dot | 90 MOA |
| Monstrum G2 | BDC reticle in FFP | 60 MOA |
Built for Tough Conditions
| Waterproof | Fogproof | Shockproof | |
|---|---|---|---|
| ATN Thor 4 | Resistant to water splashes (not fully submersible) | Yes | Yes |
| Monstrum G2 | Yes | Yes | Yes |
Accessories & Warranty
| Includes | Warranty | |
|---|---|---|
| ATN Thor 4 | ThOR 4 HD Thermal Rifle Scope 1-10x, 640x480 with HD Video Recording, Wi-Fi, GPS, Smooth Zoom | 3 Year Manufacturer |
| Monstrum G2 | Heavy-Duty Scope Rings, Flip-Up Lens Covers, CR2032 Battery, Sunshade, Manual | Limited lifetime warranty |



















