The Crimson Trace Hardline 4-12X40mm riflescope is engineered specifically for tactical and target shooters with Second Focal Plane (SFP) design and a Custom BDC reticle calibrated for 223/556 ammunition.Crimson Trace Hardline 4-12X40mm SFP RiflescopeCustom BDC reticle optimized for 223/556 cartridgesAerospace grade tube construction for maximum durabilityGenerous eye relief for quick target reacquisitionFully multi-coated lenses for superior clarityNitrogen purged and waterproof designBlack finish for tactical applicationsBuilt from the ground up to handle abuse in demanding environments this scope delivers reliable performance for tactical operations and precision shooting applications where durability and accuracy are paramount.