WMX Outdoor Hunting Tactical 133mm Red&Green Dot 4 Reticle Reflex Sight Rifle Scope with Dovetail Mounts DURABLE: Good construction,the base and dial are completely made of aluminum,the dial/battery cap are well crafted and are mechanically sound,the lens it has a nice coating on it and the sight itself has good eye relief. The Sight packed in a small packaged box with two Allen wrenches, a sight cover and basic instructions FUNCTIONAL: Tubeless design with 33mm reflex lens aperture provides a wide field of view,suitable for rapid-firing or shooting of moving targets beside normal shooting.It has 4 different riticles and each can be displayed in two color options (red and green),there are 3 levels of brightness for each color CONVENIENT: Allen head screw type windage and elevation click adjustments,with locking screw,it is very easy to zero in and and has stayed accurate ever since,built-in mount(integrated rail) for standard bases,no need to rezero when remounting the dismounted sight.Very light weight,waterproof and shockproof APPLICABLE: This electro dot sight includes an integrated rail that fits standard, dovetailed bases. Set the rail onto the base ,work the claw into the base until the cross-bolt seats into the groove,then securely tighten the locking screw with the allen wrench GUARANTEE: WMX aim to offer the best quality of products with the valuable price, this sight is very well worth for the price,just rest assured to purchase,15 days fast returns and refunds is available and if you have any dissactisfactory