Second day out with this rifle about $400 350 rounds of ammunition down the tubes... finally got the gas set right for this particular bullet but apparently I have to do it if I get a different kind of round again... and I have yet to go through a 20 round mag without experiencing at least one and usually multiple Miss feeds or jams. In fact so many jams that it has damaged the ejection tray I had to use a needle nose pliers to put it back in shape so I can put the rifle back together again the 2 tabs on it bent because of rounds jamming into them routinely. I probably shouldn't write this right now because I'm at my wit's end, but this is a very expensive joke if this is supposed to be a real combat rifle. I was looking for one rifle that could do it all tactics hunting and do it reliably and that's why I went with this one... but I cant believe a company like Kel-Tec would sell this when it doesn't even work .. I'm not a newbie after 13 years on SWAT I have broken many AR out of the box and put them through their paces first day on the range with no problems what so ever ive been on the range for 8 hours dumping a 1000 rounds per training without cleaning and NO mis-feed ... if this gun does not do better it is just dangerous to carry into a fight ... Any one want to buy mine for $1400 bucks?