ok, balls are rolling out of the barrel because of teh ball detent, which is probobly broken, right under the feedneck there is a black rectangular thing, which is the detent cover, unscrew that and you will see a little ball, check to make sure it is not pushed in or look for damage, if there is no ball, i would call kingman customer support and im sur ethey would be happy to give you a new one.
And as for the balls goin left, this is probobly due to a bad paint to barrel match, put one of the balls on the barrel and if it gets stuck the paint is to big, and if it rolls through easily it is to small, just try different paints to fing one wich fits
And as for the balls goin left, this is probobly due to a bad paint to barrel match, put one of the balls on the barrel and if it gets stuck the paint is to big, and if it rolls through easily it is to small, just try different paints to fing one wich fits