Note:Goods just copy Original, for airsoft player. Our G33 Magnifier mounts directly behind a Holographic Weapon Sight (HWS). Delivers fast transitioning from 3X to 1X, tool-free vertical and horizontal adjustments, larger field-of-view, and an adjustable diopter for improved, precise focusing. When used with HWS Models 518, 558, and EXPS (with side-button interface), the user can easily operate the sight even with the magnifier engaged. B: Reticle color switch (Red/Green).(Sight & Magnifier have logos). Note: This product does not include batteries (CR123A). We care about our buyers, if you have any questions, our customer service staff will be more than happy to help you. Please allow us to respond within 24 working hours. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Red Dot & Laser". The seller is "outdoor_store-cc" and is located in this country: US. This item can be shipped to United States.