Solomone Cavalli Tactical Rifle Scope 2.5-10x40 AO Illuminated Red&Green Mil-dot Laser Combo Fits Picatinny & Weaver Rail Mounts - Comes with 11 Backup Batteries Precision-engineered multi-coated optics, illuminated, rapid range, glass etched reticle Different brightness levels for increased adaptability to environment - 10-level settings (5 red, 5 green) Magnification 2.5 to 10 power, made for close to mid-range shooting, Red laser sight allows for quick acquisition of close quarter targets. Shock and Recoil Resistant, Nitrogen Filled, Shockproof, Fogproof, and Water Resistant Durable metal construction and high grade optical glasses ensure long-time durability, Quick and secure attachment to all Picatinny or Weaver rails