Typically in the past it's not been allowed, mostly because there are so many other places to sell that sort of thing it will clutter up the commerce section with unrelated items.
And as a sideline to that in the past there was a tendency for new guys/kids to try and sell/trade almost anything for an airsoft gun and it often was a serious PITA.
So no not in commerce, I'd sell them elsewhere and likely you'll have better luck anyways;)
Luke
