The Holosun LS321 Green Laser Sight is a high-quality and reliable accessory designed for hunting with rifles. With a 21mm objective lens diameter and a fully coated lens, it offers a clear and precise view. The laser sight features a red reticle color that can be illuminated for enhanced visibility. Made of lightweight aluminum and featuring a Picatinny rail mount, it is easy to attach and remove from your firearm. The Holosun LS321G is a 7075 Aluminum bodied multi- laser aiming device. Zeroing is easy with the coaxially mounted class IIIA visible green laser, class 2M IR laser, and IR Illuminator. With a quick release picatinny rail mount, a remote pressure switch and IP67 water resistance level, this coaxial multi-laser is the perfect addition to any rifle or PDW. Features of the Holosun LS321G. Coaxial Dual Laser & IR Illuminator. 3.6″x2.2″x1.6.