Holosun LS221G&IR Coaxial Green and IR Laser Sight w/ QD Picatinny Rail Mount – LS221G-IR. The Holosun LS221G is a 7075 Aluminum bodied multi- laser aiming device. Zeroing is easy with the coaxially mounted class IIIA visible green laser and a class 2M IR laser. With a quick release picatinny rail mount, a remote pressure switch and IP67 water resistance level, this coaxial laser is the perfect addition to any rifle or PDW. Features of the Holosun LS221G. Coaxial Green and IR Laser Pointer. This item may be regulated for export by the U. Department of State or US Department of Commerce. 3.4″×1.9″×1.5.