Crimson Trace HARDLINE 4-16X42 30MM BDC LR Riflescope | BDC Long Range 01-01190 Model Hardline Riflescope Finish Black Anodized Waterproof/Shockproof Second Focal Plane Spring-Loaded Zero Reset Magnification 4X - 16X Main Tube Size 30mm Objective Size 42mm Optic Adjustments 1/4 MOA Reticle BDC Long Range Reticle