I picked up my first AR a few months ago, and having experience with other AR's and other SA rifles, the reset on mine is odd. It feels more like a dull clunk as opposed to a clean click. Is this something thats common on these rifles? (or other AR's in general), and aside from a new trigger, is there a DIY fix to improve it? Aside from that, the rifle is awesome, and runs great. Need to get some handloads done up for it now.