I don't see police much. But I agree that the police batons I see advertised for sale seem to be metal collapsible things, though I never find a weight mentioned in the adverts. How much lead has been added to the tip?
An alternative I've seen used on campus is a big Maglight. I'll agree that it represents a step that's usually less violent that reach for a gun, but when I read of police striking a woman "21 times with a baton", I have a hard time.