>>11243982BB pellets totally work too. If you wanna check if the paint has gone bad before you frustrate yourself to death, the "dropper" tips of the paint bottles can be taken off. If what you see inside looks like this kind of goopy shit it's going to be far more time and effort to make it kinda sorta work again than it is to just order a couple of fresh one from Amazon. Make sure to shape before you take the tip off, otherwise you might be confused by a slightly separated paint which is not necessarily bad yet