The RT-R Mod 3 3x Magnifier is the perfect companion for our RRD or RMD red dots sights. You will love the glass clarity, ease of use and simple pull release with two locking positions. The magnifier utilizes an aluminum body which is 100% waterproof, fog proof and shockproof.Dry nitrogen purged and sealed - utilizing nitrogen gas, the optic is purged and sealed to ensure optimal performance in all weather conditions for the life of the opticPrecision quality assurance - every Riton product goes through a rigorous quality control process by a certified technician in Tucson, AZ., each product you receive has undergoneRiton HD glass - the Riton high density (HD) glass delivers 99.5% light transmission for enhanced clarity and optimal sight pictureRiton performance coating - incorporating proprietary fully multi-coated lenses, all Riton optics feature low light enhancement, full wide band, anti-scratch and anti-reflectiveRiton rugged construction - the Riton rugged construction incorporates the application of 6061 T6 aircraft-grade aluminum, CNC machined 1-piece tubes, and Type III hardcoat anodizeAircraft grade aluminum with rugged design ready for the toughest environments 100% waterproof, fogproof and shockproof (tested up to 1200 g's)Assembled in EP-level clean room