The Crimson Trace Hardline 4-12X40mm rifle scope is engineered for tactical and target shooters who demand precision and reliability. Built with an aerospace grade 1" tube and Second Focal Plane (SFP) Mil-Dot reticle this scope delivers consistent performance in demanding conditions.Crimson Trace Hardline 4-12X40mm Variable Magnification Rifle ScopeSecond Focal Plane (SFP) Mil-Dot reticle for range estimation and holdoversAerospace grade 1" aluminum tube construction for maximum durabilityGenerous eye relief for quick target reacquisitionFully multi-coated lenses for superior light transmissionNitrogen purged and waterproof for all-weather reliabilityPurpose-built from the ground up for tactical applications and precision shooting this scope handles abuse while maintaining accuracy and clarity in any environment.