Good quality expandable baton?

So I have bought-en expandable batons in the past they have been the 20-40 dollar cheap ones. I am looking for a high quality one that wont warp or bend by hitting it a little bit in practice and also by opening and closing it. I went to ASP's website but you have to be a police officer or such to buy them. Anyone know of any good high quality expandable batons one can buy without having to be a police officer or such?