SightMark LoPro Mini Laser Sight 300 Lumens Picatinny Rail Mount Matte Black Green Laser 520nM Wavelength. These low-profile Green Laser Sights developed by the experts at SightMark provide IPX5 weather-resistant protection and a shockproof design for use in wet conditions and on recoil up to .308 rounds. The SightMark LoPro Mini Laser Sight Green Laser FDE has a max distance of 600 yards at night and 50 yards in daylight providing a bright