Eotech EOT-OGL-C-B On-Gun-Laser Black Aluminum
The Eotech EOT-OGL-C-B On-Gun-Laser is a professional-grade aiming and illumination system built for operators who need speed and reliability under pressure. This compact laser mounts directly to your rifle or carbine, combining a visible aiming laser, near-infrared aiming laser, and NIR illuminator in a single black aluminum housing roughly the size of a playing card. Whether you're working in daylight, low-light, or total darkness, the OGL gives you multiple wavelengths and power levels to maintain the upper hand.
The real genius of the OGL lies in its ergonomic lever—a patent-pending design that lets you shift between spot and flood modes, and dial power up or down, all without breaking your grip or situational awareness. A single CR123 battery keeps the system running for up to 9 hours of continuous operation. The machined aluminum construction is built for hard use; this isn't a tool that quits when conditions get rough.
The visible laser outputs up to 30 mW on high (Class 3B), while the IR aiming laser reaches 35 mW high, and the NIR illuminator cranks to 105 mW—giving you flexible options depending on whether you need to see and be seen, or stay invisible to night vision. All three channels use precision VCSEL diode technology to produce clean, tight beams with less than 0.5 mrad divergence on the lasers. This is the kind of accuracy and control that separates professional-level gear from everything else.
Key Features
- Dual aiming lasers (visible 520 nm and NIR 850 nm) with low and high power outputs
- Near-infrared illuminator (860 nm) with adjustable spot-to-flood beam
- Ergonomic lever for instant mode and power adjustment without breaking grip
- Compact black aluminum body, roughly playing-card sized
- Up to 9 hours continuous runtime on single CR123 battery
- Precision VCSEL diode technology for tight, clean beam performance
Specifications
| Visible Aim Laser Output (Low) | ≤ 4.7 mW (Class 3R) |
| Visible Aim Laser Output (High) | ≤ 30 mW (Class 3B) |
| Visible Aim Laser Wavelength | 520 nm (±10 nm) |
| NIR Aim Laser Output (Low) | ≤ 0.7 mW (Class 3R) |
| NIR Aim Laser Output (High) | ≤ 35 mW (Class 3B) |
| NIR Aim Laser Wavelength | 850 nm (±10 nm) |
| NIR Illuminator Output (Low) | ≤ 2.7 mW (Class 3R) |
| NIR Illuminator Output (High) | ≤ 105 mW (Class 3B) |
| NIR Illuminator Wavelength | 860 nm (+10 / –30 nm) |
| Beam Divergence (Aim Lasers) | < 0.5 mrad |
| NIR Illuminator Beam Divergence (Spot) | ≥ 23 mrad |
| NIR Illuminator Beam Divergence (Flood) | ≥ 105 mrad |
| Power Source | Single CR123 battery |
| Battery Runtime | Up to 9 hours continuous |
| Housing | Black machined aluminum |
| Size | Approximately standard playing card size |
Frequently Asked Questions
What lasers does the Eotech OGL include?
The OGL combines three laser/illuminator functions: a visible 520 nm aiming laser (up to 30 mW on high), a near-infrared 850 nm aiming laser (up to 35 mW on high), and a near-infrared 860 nm illuminator (up to 105 mW on high). This multi-wavelength setup lets you engage in any lighting condition and work with or without night vision.
How long does the battery last?
A single CR123 battery powers the system for up to 9 hours of continuous operation, making it practical for extended duty or training without needing a spare.
Can I adjust the beam from tight to wide?
Yes. The patent-pending ergonomic lever allows you to adjust the NIR illuminator from a tight spot beam to a wide flood pattern, and to switch between low and high power on all channels—all without removing your hand from your weapon.
Is the Eotech OGL waterproof and durable?
The OGL is built from machined aluminum and is engineered for professional use under extreme stress. The compact, solid construction provides excellent durability; however, refer to the manufacturer's specifications for detailed environmental and waterproof ratings.

