For just about the same money this thing doesn't even touch a sig sauer romeo series or, a holosun product due to the horrible windage/elevation adjustments. I purchased 2 romeo fives off amazon for a $119, it is only a red. They are non existent!

One gripe is that it doesn't have a flat end to adjust the rear site like the troy industries tool does. The 2nd one was for an offset troy m4 front sight (yes, it fits perfectly). Took 5 minutes to install and is working perfectly.