I put this on my patrol rifle and shot 18 shots to get it setup. For my application though, it has turned out to be too heavy. Want to trade for Aimpoint Micro T1 or T2 with quality (Larue, etc.) mount. http://www.larue.com/aimpoint-micro-t-1-2moam4-qd-mount-combo
Need to shave weight. Might have to throw a little money in depending on trade.
Would also trade for gen 4 g43 or g27