The NightStar 2-16x44SFIRS hunting scope is a high-quality optic designed for rifle shooting. It features a 44mm objective lens diameter and a 30mm tube diameter, with a TDRM reticle type and second focal plane. The scope is waterproof, shockproof, and fog proof, making it suitable for use in a variety of weather conditions. It also has multiple reticle patterns, an illuminated reticle, and comes with a lens cloth and cover. The single-piece chassis and FMC lens provide durability and clarity.