Looks good..... for airsoft - Leapers UTG PRO 15in. Free Float Rail

I installed the rail and tighten the screws down to spec. There is movement where the rail attaches to the proprietary barrel nut as if the screws are not tighten down enough. I can't tighten the screws down anymore. The problem is in the design itself. The rail does not make perfectly to the receiver rail in the 12 o'clock position and no matter how tight you fasten the screws you won't get any clockwise movement but up and down, well that's another story. If you're relying on iron sights you might want to consider the accuracy issues you might run into concerning elevation. Very disappointed because at first when installed everything seemed pretty darn good. I guess sometimes in life you learn the hard way. You get what you pay for.