I just picked up a new xcr-l keymod in .223 and when playing around with it last night i noticed that upper and lower receiver on the left side dontt quiet line up. The contour lines are lower on the upper receiver and the upper seems to stick out further than the lower. Everything locks up tight and the bolt pulls back fine. Everything seems to fucnction. Also there seems to be a bit of play in the main pin joining the upper and lower. Are these common issues or did i just get a QC issue? Any help is greatly appreciated.


















































