The Armasight Gen 3 Vulcan 4.5x Compact Professional Night Vision Rifle Scope is a stand-alone, dedicated night vision riflescope that does not require an existing riflescope. This Gen 3 Vulcan is available with 1800+, 2200+ and 2400+ FOM Ghost White Thin-Filmed Phosphor Image Intensifier Tubes, the preferred choice of elite special operators across the globe. The Armasight Vulcan 4.5x can use either a single AA battery, or a single CR123A battery, increasing your options for standardizing your batteries with other gear that you own. The Armasight Vulcan 4.5x features an auto shutoff technology that will power down the unit if it receives no input for 60 minutes as a safeguard in case the unit is left on after use. The unit also protects itself by shutting down if exposed to excessive ambient light and returns to an active state once removed from the light source, preventing damage to the Image Intensifier Tube (IIT). For optimal contrast, the illuminated reticle is independently adjustable for brightness. This shockproof and waterproof riflescope incorporates multicoated all-glass lenses for superior IR light transmission and is purged and filled with dry nitrogen to prevent fogging. Complete with tactical rails for attaching IR lasers or illuminators, the Armasight Vulcan 4.5x night vision riflescope doesn't skimp on value or advanced features. Package Contents Vulcan 4.5x Night Vision Riflescope Lens Cap Eyecup Watchman IR Illuminator Quick Detach Weaver Mount Battery Key Product Manual Lens Cloth Soft Carrying Case CR123A battery 3 year limited warranty with registration