Meprolight Magnifier Right Adaptermeprolight Mepro Mmx4
$349.99
$474.99
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The Meprolight Mepro MMX4 is a compact 4x magnifier designed to pair with your red dot or 1x reflex sight and extend your effective shooting range. This right-side adapter mounts directly to any MIL-STD-1913 rail positioned behind your primary optic, letting you keep your sight picture consistent while adding magnification when you need it. Weighing just over 10 ounces with the mount, it won't bog down your rifle or shotgun, and the flip-to-side design means you can swing it out of the way in seconds when you're back to close-quarters work or moving fast through brush.
The MMX4 delivers a 5.5-degree field of view with a 6mm exit pupil and 2.65 inches of eye relief—enough breathing room for proper sight picture without the eyebox squeeze of some magnifiers. The wide field of view is built for speed, letting you keep both eyes engaged on the target even when magnified. Elevation and windage dials let you dial in a precise zero, and the diopter adjustment (±2.0) handles a range of vision and mounting heights. A simple pushbutton flip mechanism lets you stow it without tools or rail space shuffling.
Built for real-world use, the MMX4 handles temperature swings from –4°F to 122°F and is rated IPX7 for submersion, so rain, spray, and incidental water crossings won't kill it. The compact 3.2-inch length and 24mm objective keep the overall footprint small—ideal for hunting rifles, tactical carbines, or any setup where you're balancing magnification, weight, and agility.
Key Features
- Flip-to-side design stows the magnifier out of the way without removing it
- 4x magnification extends range of red dot and reflex sights
- Wide 5.5-degree field of view for rapid target acquisition with both eyes open
- Precise elevation and windage dial adjustment
- Diopter adjustment (±2.0) for visual clarity and mounting-height correction
- Compact, lightweight design—minimal weight and rail real estate
- IPX7 water resistance for hunting and outdoor use
- Operates reliably from –4°F to 122°F
Specifications
| Magnification | 4x |
| Objective Diameter | 24 mm |
| Exit Pupil | 6 mm |
| Angular Field of View | 5.5° |
| Eye Relief | 2.65" (67.5 mm) |
| Length | 3.2" (82 mm) |
| Center Height | 1.58" (40.3 mm) |
| Center Height with Riser | 1.75" (44.7 mm) |
| Weight with Mount | 10.23 oz (290 g) |
| Diopter Adjustment Range | ±2.0 |
| Windage & Elevation Travel | ≥60 MOA |
| Operating Temperature | –4°F to 122°F |
| Storage Temperature | –22°F to 76°F |
| Water Rating | IPX7 (submersion) |
| Mount Type | MIL-STD-1913 rail (right-side adapter) |
Frequently Asked Questions
Will the Mepro MMX4 work with my red dot sight?
Yes. The MMX4 is designed to mount directly behind any red dot or 1x reflex sight on a MIL-STD-1913 rail. Position it behind your primary optic so both sights are in line with your normal firing position.
Can I flip the magnifier out of the way quickly?
Yes. A pushbutton-activated flip mechanism lets you swing the magnifier to the side in seconds without removing it from the rail or using tools. This keeps your sight picture aligned while letting you switch between magnified and unmagnified shooting in seconds.
What's the weight impact?
The complete Mepro MMX4 magnifier with mount weighs 10.23 ounces, a modest addition that won't significantly slow or fatigue a rifle or carbine, especially compared to standalone magnified scopes.
How does the diopter adjustment work?
The diopter adjustment (±2.0) lets you fine-tune focus for your individual eyesight and accounts for different rail heights and mounting configurations. This ensures a crisp sight picture across the magnified field of view.
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