Finally had a chance to get to the range (life got in the way for awhile). Anyway, it took a little bit but I got it sited in. You do have to use the tool they send, as the standard AR site tool won't work.
The visibility is better than the stock post, but still not as good as I had hoped. The green insert doesn't stand out quite as much as I would have liked. I'll probably just leave it alone, as I plan to put an optic on it eventually.