I'm sorry to post two threads about this gun, but I have different concerns. I am contemplating returning my Bar-10 and getting a replacement. Firstly, the bolt on the gun "acts up" quite a bit. It commonly gets stuck while in the forward position, and prevents me from cocking the gun. Also, when it is back, it slides forward very easily. Before, it used to stay back until I returned it. Secondly, the accuracy. The gun will spin randomly to the left or to the right. I know this is hop up, but I do not want to do the TDC mod if I am debating returning it. Are all Bar-10s this inaccurate? Are all their hop up arms uneven? That is pretty much it. I would like some advice from those who know more than me. Thanks!