The Crossfire is a no-nonsense sight at a no-nonsense price for darn near any application, and when your AR-15, shotgun, or rimfire needs a simple point of aim and none of the frills, the Crossfire should be at the top of your list. The 2 MOA dot is quick to acquire in close-quarters, while remaining fine enough to promote pin-point accuracy at extended range. With a 50,000 hour battery life and night-vision compatibility at the lowest two settings, the Crossfire red dot will keep working in a variety of conditions. In addition to just plain looking awesome, the included skeletonized lower 1/3 co-witness mount provides a rock-solid and extremely lightweight platform.
At first, you might think you have a bad optic or a dead battery, but Vortex Crossfire 2 is designed to work with a very low light output to be functional with night vision applications, making the lowest dot-light settings invisible, so you will have to go to the higher light output for normal viewing. There is nothing wrong with the sight, just a small learning curve. Great product being on when you turn it on.
After talking to vortex customer service got it work out. Red dot now working great love the ability to change/setting of red dot brightness. Leave it on 5-6 and it look great
This Vortex Crossfire red dot is a do not buy, knob hard to turn, always on unless you turn it off, can not see red dot unless above 4-5 mark and very glare after that. Get a Romeo 5 and be happy. I have a Romeo 5 and love it, but wanted to try vortex crossfire and it is not very good.