This scope is very nice for the price. I think it compares to any other,including Colt which is about ten times the price used. The cross hairs are great because they thin out at center and they do not block the target as much. The only problem is it does not sit high enough on the factory handle and interferes with the rear sight on the weapon,so you can not make vertical adjustment if you were using regular sights. (which I will probably never use with scope on) Other than that I am very happy with the purchase. I was hitting a 3 inch target at 75 yards consistently.
New Ultralux 4x20 scope for AR-15. These are a compact 4 power scope built specifically for the AR-15. Installs easily with quick detachable mounts which is included. Mounts through the hole in top of carry handle. No modifications to the gun are required. These scopes have a built-in bullet drop compensator calculated for the trajectory of the M193 ammunition and has settings for 100, 200, 300, 400 and 500 yards. With full elevation and windage adjustments.
Field of view @100yrd: 23.2 ft
Optimum eye relief: 3 inches
Overall length: 6.75 inches