I've paid down on a SU-16C, and while in the gun shop I was handling the rifle and trying out the folding bipod. When I folded the forend out to the bipod position it seemed loose at the pivot point where it attaches to the rifle under the gas block. Are all the "Charlie" models that way? I need some feedback from some of you owners. Should the bipod be that loose? It seems to be snug and sturdy at that point when in the closed position. Thanks for any feedback.