okay for one I know this is not a cheap gun by ANY MEANS. when I usually I think of 308 or 762 I think more of sniper rifles Than infantry. The Scar was on the top for a very long time to be the new ACR but of course H&K got the final IAR contract. this is going to be the first time in modern history that we don't make our own infantry weapons that is America.now THAT the MR 556 is some company needs to copy H&K's GPU and start marketing it lol that would be a smart company. Just change a little thing cuz the GPU market for a ours needs to be standardize. I have always been intrigued with the scar because it has the tappet piston. This is a much different piston then the straight back and forth. The m1 carbine was the first to use this and it was super reliable. I was just wondering from you owners even the SCAR L owners is it very reliable? Like worth the money definitely? There's a lot more questions I would like answered but the piston I would like to start at.thanks to any who respond.