Fire Field 1x30mm Combat Sight FF13012 is a fast-moving, highly efficient reflex sight from the professionals at Firefield. Mounting directly to the top of your firearm using a Weaver rail mounting system, the Combat Sight adds red dot capability to your weapon, but it also includes top-mounted iron sights for when it's too bright to use the reticle. But why use iron sights when you can take advantage of the Firefield red dot sight's illuminated, 8 MOA green/red dot reticle, which is ultra-bright and will never flicker, giving you high accuracy in any environment. In fact, the brightness of the Fire-Field Red Dot Combat Sight's reticle has five different, manually adjustable settings to choose from; dial it up when you're outdoors or in a bright room, or tone down the brightness if you're in a dark area and you want to preserve your night vision. Fire-Field has built the Combat Sight out of extuded 6063 aluminum for added durability, and it comes in an attractive Matte Black finish. These red dot sights may only give you 1x magnification, but the red dot can really improve your accuracy by giving you a never-wavering, always bright point of reference for your shots. For quick target acquisition, high accuracy, and a level of versatility you might not find on other red dot sights, choose the Fire Field 1x30 Illuminated Dot Combat Sight.