I think the guys who are talking about how unreliable etc the rifle is should have to post if they actually have one or not. Like Stevo said above, mine runs like a 'sewing machine' as well. I'm sure I've put upwards of 500-600 rounds through it. It had a FTF once that I can recall, when my co-worker kind of limp wristed one and the stock slid off his body armour.
Otherwise it's clanging the 600 yard/(meter?) gong easily. Yup needs a new trigger, but works like a champ otherwise. Going off second/third hand information on these is silly. Track someone down and go shoot it. Travis Bickle has shot mine several times, you can take his word for it when he writes. If you buy one expecting a sniper rifle, you're out of luck. If you buy one expecting to put up groups that 4 out of your 5 holes the M305 will give you, then you're golden. I've shot big groups, I've shot 5 holes touching groups. I've shot 30 rounds rapid fire in 3-4 inches with a smoking hot barrel.
It's a 1700$ AR10, it's a dream rifle for a lot of us, but expecting it to be something it's not, and then complain about it, or complaining about it based on another person's review of it is just silly. You don't know what that person has done to it, if they've lubed it, if they're limp wristing the shots, if they've mucked something up taking it apart, etc etc. Yes I'm sure there will be some small issues, but let's all be realistic here. Even Colt Canada puts out some duds. ATRS put out some 5000$ comparables that have had issues.