Just finished putting my kit together, and experienced few problems until now. I inspected the action, cycled it a few times, and everything seemed acceptable for an AK. Loaded one round, shot, shell ejected...no problem. Loaded two rounds, shot one, pulled trigger again and nothing happened. Cycled the action and ejected shell, thought bad round. Loaded mag, shot once, shot fine...pulled trigger again...nothing. Took top cover off, worked action a few times and noticed the bolt is hitting the center support pin, and possibly not cocking the trigger. The bolt also rides on the hammer a bit too. I then measured the rails, and both sides are about 8mm from the top rail. To smooth the transition from the rails to the trunnion I had previously bent one rail up slightly. The receiver is a Vulcan, so I am beginning to wonder if the rails are placed too low. I am uncertain if I bend both rails up their full length would solve the problem. I also wonder if Vulcan will take care of the problem. Any thoughts or suggestions?