Lasermax Lmerds Enclosed Red Dot Sight Matte Black 1 X 0.81" 0.71" 3 Moa
$288.36
The LaserMax Enclosed Red Dot Sight (LM-ERDS) is a fully enclosed red dot sight built for shooters running RMR or MOS optics-ready pistols. If you're serious about a duty or carry gun with modern mounting options, this is a compact, rugged optic that handles the job. The housing is aircraft-grade aluminum in matte black—tough enough for daily use and designed to stay out of your way while keeping your sight picture crystal clear.
What sets this red dot sight apart is the external forward-facing light sensor that automatically adjusts brightness based on ambient light. That means you're not fumbling with brightness settings on the fly—the reticle adapts as you move from bright daylight to indoor or low-light scenarios. You get 8 brightness levels for day use and 2 for night, plus a manual mode if you prefer to dial it in yourself. The "shake to awake" feature keeps the battery alive longer; it wakes the sight when you need it without draining the CR2032 that's included.
Windage and elevation adjustments are straightforward: each click equals 1 MOA, so you can dial your zero quickly at the range. The 3 MOA red dot reticle is clean and fast for both close-quarters and moderate-distance shooting. Run time on the mid brightness setting hits 50,000 hours, so you're not replacing batteries constantly. Both RMR and Glock MOS base plates come in the box—mount it on whichever platform you're running.
Key Features
- External forward-facing light sensor with automatic brightness adjustment
- 8 day and 2 night brightness settings, plus manual mode
- Shake to awake technology extends battery life
- Aircraft-grade aluminum housing, matte black finish
- 3 MOA red dot reticle for fast target acquisition
- 1 MOA per click windage and elevation adjustment
- 50,000-hour runtime on mid brightness setting
- RMR and Glock MOS mounting base plates included
- CR2032 battery included
Specifications
| Brand | LaserMax |
| Model | LM-ERDS |
| Reticle | 3 MOA Red Dot |
| Housing Material | Aircraft-grade 7071 aluminum |
| Finish | Matte black |
| Brightness Levels | 8 day / 2 night + manual |
| Windage/Elevation | 1 MOA per click |
| Operation Modes | Auto brightness, manual adjust, shake to awake |
| Battery | CR2032 (included) |
| Runtime (mid setting) | 50,000 hours |
| Compatible Mounts | RMR, Glock MOS |
Frequently Asked Questions
What pistols and mounting systems is this red dot compatible with?
The LM-ERDS is designed for RMR or MOS optics-ready pistols. The sight ships with both RMR and Glock MOS base plates, so you can use it on platforms that accept either mount type.
Does the brightness adjust automatically, or do I have to change it manually?
Both. The external forward-facing light sensor automatically adjusts the red dot brightness based on ambient lighting. You also have the option to switch to manual mode and dial in the brightness level yourself if you prefer full control.
What's included in the box?
The sight comes with both RMR and Glock MOS mounting base plates, and a CR2032 battery is included and ready to use.
How long does the battery last?
On the mid brightness setting, the CR2032 will run for approximately 50,000 hours. The shake to awake feature also helps conserve battery by waking the sight only when movement is detected.
