You can buy a light weight barrel, rail,buffer tube, stock and upper. Mine weighs 5lbs 4 oz with optic. I have noticed more dot movement then with my gmr-13 which was slightly heavier. Saving weight costs money too. Bfs barrels are super light and a tacoom barrel extension. Smoke composites carbon fiber stock and buffer tuber are really light and a brigand arms rail weighs nothing. vSeven has dome really light uppers. I have almost $3,000 in mine and its too light. Sent from my iPhone using Tapatalk