NcSTAR Freedom Series Full-Size 4-16X50 Scope with P4 Sniper Ill. Reticle (Black,Red/Green,Green) Open Target Turrets. Fully Multi-coated Lens FREEDOM SERIES FULL-SIZE 4-16X50 SCOPE/BLACK/P4 SNIPER/RED AND GREEN ILL. RETICLE/GREEN Waterproof  Shockproof  Fogproof  Capable of withstanding the toughest conditions Audible and Tactile  MOA Elevation and Windage Adjustments One Piece Main Tube Constructed of Aircraft Grade Aluminum with a Hard Anodized Finish