You do get what you pay for, it is pricy (even with the OP great price) but the quality seems to meet that of a high price. Extremely compact as far as over all rail space. Love the QD mount on both sight and magnifier. The 4 dots aren't easy to see without the magnifier but it is possible, at least with my vision, to tell where the center of each dot is. Unfortunately you have to have the sight and magnifier all the way back on your flattop in order to get the correct eye relief. I was able to leave my magpul bus on the rail, but it was positioned to the point where it comes extremely close to interfering with the charging handle.
Pros: Simplicity, 1x - 3x in less than a second, compact
Cons: Eye relief, price is a little high
This review was written in the old system and had content requirements that are different than reviews written today.