I own a DPMS LR 308 and would like to put a quality set of sights on it or set up for backup. I looked at the Troy, but watched a guy at the range who couldn't get his to adjust low enough to sight in. Anyone with ideas or experience with their rifle help is appreciated. Also having Jamming issues with my LMT CQB, tried different mags, bullets, factory, hand loads and still get failure to feed, double feed, jams etc. Really surprised given it is a LMT. Been fighting it for six months now and about ready to give up. Any Ideas appreciated. Thanks