The green laser sight emits a beam with 100 yards of visibility in broad daylight and up to one mile at night The laser sight mount permits both windage and elevation adjustments. This Fire Field Green Laser Scope allows rapid target acquisition and features a tactical on/off pressure pad. Firefield manufactures the laser rifle scope with different scope mount options allowing the laser scope to work with many kinds of firearms. Specifications for Firefield 5mW Green Laser Sights with External Adjustments Kit: Effective range yd: 1760 Power mW: