Green Laser Genetics ND40 ND3 x40 Long Distance Laser Designator Pointer with Ring Mounts for Hunting

Precision machined from high tech aluminum Black matte anodized finish Fully O-Ring sealed for dust and water Fully Multi-Coated optical lens system Nitrogen charged for anti-fog Rotary optical beam collimator - allows quick adjustment of beam diameter and intensity 532nm (Green) Laser light frequency - easiest light for the human eye to see