2 OR 4 POSITION BUFFER TUBE

i’m wanting to buy a mil spec buffer tube thats a 2,3,or 4 position, it needs to be mil spec diameter, and while not a requirement it would be nice if it was more gray

shoot me a pm if you have an old junk buffer tube laying around, wear is not much of an issue, just a 2,3,or 4 position mil spec tube

thanks
jon