The 3-12x40 AO Airgun Riflescope from Barska is constructed to withstand the additional reverse recoil produced by airguns. The AO Airgun Riflescope features an adjustable objective (AO) to adjust for multi-range parallax error. The AO allows the scope to deliver continuous accuracy and precision. There are fully coated optics and a ranging Mil-Dot reticle. The 1 tube comes with scope caps. It is waterproof fogproof and shockproof. This scope is ideal for competition and recreational shooting and is backed by Barska's Limited Lifetime Warranty. - 1 Tube - Mil-Dot Reticle - Fully Coated Optics - Adjustable Objective - Reverse Recoil Technology - Waterproof Fogproof and Shockproof