The Holosun 407K Green is a compact reflex optic intended for micro and slim-profile pistols. Its single 6 MOA green dot provides a clear, high-contrast aiming point that is well suited for rapid sight acquisition while maintaining a simple sight picture. The housing is machined from aluminum and sized to minimize overhang on narrow slides.

Power is supplied by a CR1632 battery housed in a side-loading tray, allowing replacement without removing the optic from the slide. Brightness is adjustable across multiple daylight settings and includes motion-activated illumination to conserve battery life when the optic is idle. The optic is compatible with K-series mounting patterns and RMSc-pattern slides or adapter plates, depending on host configuration.

Specifications

• Manufacturer: Holosun

• Model: 407K Green

• Reticle: 6 MOA dot

• Reticle Color: Green

• Body Material: Aluminum

• Finish: Black anodized

• Battery: CR1632

• Battery Life: Up to ~50,000 hours (nominal setting)

• Controls: Push-button brightness adjustment, motion-activated illumination

• Footprint: Holosun K/RMSc pattern

• Lens: Multi-coated glass

• Weight: ~1.0 oz