We designed the RiflemanĀ® to surpass all of your expectations. This is one razor-sharp optic, and like every Leupold riflescope, the Rifleman was designed, machined, and assembled in our Oregon factory. We test it to ensure it's absolutely rugged, 100% waterproof, and we guarantee it for a lifetime of performance. FEATURES: Multicoat 4; Classic/Standard Lockable Eyepiece; 3:1 Zoom Ratio; BAS (Ballistic Aiming System); Micro-Friction 1/2 MOA; Proprietary Nitrogen Fill Process; One inch Maintube; 100% Waterproof and Fogproof.