Idk why fx won't let us choose pellet or slug liner when we order our gun. Mine came with a pellet liner (I think) idk since it doesn't say pellet or slug liner. But I heard all fx guns comes with pellet liner. Anyhow I don't want to spend money on a slug liner and have a pellet liner that will just sit and collect dust. So can I buy some slug and just shoot from whatever liner my gun came with. Gun is gen 3 fx impact x 25 cal.