Mepro USA MPO-DF MOA Dot RMR Tactical Reflex Sight - 901243271
- Objective:
- 22mm
- Min Magnification:
- 1x
- Max Magnification:
- 1x
- Adjustment Size:
- 1 MOA
- Battery Size:
- CR1632
- Dot Size:
- 3.5 MOA
- Eye Relief:
- Unlimited
- Proofs:
- IPX7 Waterproof/Fog Proof/Shock Proof
- Reticle:
- 3.5 MOA Red Dot
- Weight:
- 1.20 oz
- Windage Elevation:
- Adjustable
The Mepro MPO-DF is an open reflex red dot sight built for shooters who want a rugged, reliable aiming solution without the premium price tag. Housed in the industry-standard RMR footprint, this tactical reflex sight mounts directly to most modern pistol slide cuts and is designed to handle the demands of duty, competition, and serious carry. Whether you're setting up a defensive handgun, a competition rig, or upgrading an existing platform, the MPO-DF delivers the speed and simplicity of a red dot in a compact, durable package.
What sets the Mepro apart is the attention to real-world durability. It's waterproof to IPX7 standards, fog-proof, and built to survive the shocks of daily carry and hard use. The 3.5 MOA dot is clean and easy to pick up on target, striking a practical balance between precision and acquisition speed across typical defensive and range distances. Eight brightness settings—with both automatic and manual control—ensure you can adapt to everything from indoor low-light work to bright outdoor conditions. A single CR2032 battery keeps the sight running for 15,000+ hours, so you'll have years between battery changes.
At just 1.2 ounces, the MPO-DF adds virtually no weight or bulk to your pistol. Windage and elevation adjustments give you ±50 MOA and ±70 MOA of travel respectively, with 1 MOA per click precision for zeroing and fine-tuning. This is the kind of no-nonsense optic that works when you need it, in whatever conditions you're in.
Key Features
- RMR footprint for direct mounting on modern pistol slides
- 3.5 MOA red dot reticle for quick target acquisition
- Eight brightness levels with auto and manual brightness control
- IPX7 waterproof and fog-proof construction
- Compact, lightweight design at 1.2 oz
- Long battery life: 15,000+ hours on a single CR2032
- 1 MOA windage and elevation adjustments for precise zeroing
Specifications
| Footprint | RMR |
| Objective Lens Diameter | 0.89" W x 0.68" H |
| Reticle Type | Dot |
| Reticle Size | 3.5 MOA |
| Reticle Color | Red |
| Brightness Settings | 8 (Auto and Manual) |
| Battery Type | 1x CR2032 |
| Battery Life | 15,000+ hours |
| Windage/Elevation Adjustment | 1 MOA per click |
| Windage/Elevation Travel | ±50 MOA / ±70 MOA |
| Waterproof Rating | IPX7 |
| Fog Proof | Yes |
| Weight | 1.2 oz |
Frequently Asked Questions
Is the Mepro MPO-DF compatible with my RMR-cut pistol?
Yes. The MPO-DF uses the standard RMR footprint, so it will mount directly on any pistol slide that's been cut for RMR-pattern optics. This includes most modern duty and competition handguns.
How long does the battery last?
The CR2032 battery provides 15,000+ hours of runtime, which translates to roughly two years of continuous use. Most shooters will go well beyond a year of normal carry and range work before needing a battery swap.
Can I use the sight in low light or bright sunlight?
Yes. The eight brightness settings include automatic brightness adjustment that reacts to ambient light, plus manual controls for when you want direct command. This allows the dot to remain visible and usable across a wide range of lighting conditions.
What does waterproof and fog-proof actually mean for this sight?
IPX7 waterproofing means the sight can be submerged in water up to 1 meter deep without damage. Fog-proof construction prevents internal lens fogging in temperature changes and high-humidity environments, so the optic stays clear when conditions shift between cold mornings and warm afternoons.

