Lets put it this way. I have a Rock River Elite Car A-4 Rifle that I purchased in 2001. It is a Gas Impingement (Direct Gas) System. And I estimate I have around 25-30,000 rounds through it over the past 9 years. I use to use it a lot for demos and schools. She only had 2 or 3 malfunctions since it was new. Probably not due to the rifle, but magazine or ammunition truth known. I have re-barreled it once since it was new. I like the gas piston system on the FNs and M-14s and etc. But very questionable if it is that advantageous in the AR Platform and certainly the piston system is bringing a price tag. "It's the new thing and the chicks dig it if you know what I mean. Bottom line if that is what a person wants go for it. But nothing wrong with a good quality gas impingement AR.