If you want a monocular that is suitable for nautical use, you might be interested in the Barska AA11442 7x42 Waterproof Deep Sea Range Finding Reticle Compass Monocular. This monocular has fully multi-coated BAK-4 prisms that provide clear and bright images. It also has a non-slip rubber design that makes it easy to hold and use. It has a range finding reticle and a compass that help you navigate and measure distances on the water. The AA11442 is a versatile and reliable monocular for both experienced and beginner mariners. Learn More
Built to operate under the most demanding conditions, the Barska AC10366 SWAT Tactical Rifle Scope delivers premium performance at extreme distances. The SWAT 6-24x44 IR scope features advanced multi-coated optics for an extremely clear view, and an adjustable illuminated Mil-Dot reticle keeps you on target in any lighting situation. The 30mm monotube construction allows for greater light transmission and provides the scope with a shockproof construction. The SWAT 6-24x44 scope is fully waterproof and fogproof, and comes complete with 5/8" high see-through rings, 5" sunshade, and flip-up scope caps. Learn More