Dual Laser Sights: Take your accuracy to the next level with dual laser sights. The <5mW precision red and green laser sights help you hit your target spot-on, whether it's day or night
Dimension: P3RG is compact, measuring just 1.87" x 1.12" x 0.68" and weighing only 1.5 oz. It's designed for easy installation on a rail mount, but make sure your gear has at least 27mm ( 1.06" ) of clear space as shown in the picture for an ideal fit