Crimson Trace BRUSHLINE Pro 4-16X50 1" Pro Riflescope 01-01420 Model Brushline Pro Riflescope Finish Black Anodized Waterproof/Shockproof Second Focal Plane |Side Focus Spring-Loaded Zero Reset Magnification 4X - 16X Main Tube Size 1" Objective Size 50mm Optic Adjustments 1/4 MOA Reticle BDC Pro Reticle