The Black Lagoon OVA has a rather nice back-kick in it.

You can find it here:

http://www.anilinkz.com/black-lagoon...l-episode-1/5/

17:32 - 17:46

Although, this site has quite a few advertisements; just an FYI.

ps. The show's also not bad. There's a pretty badass fight scene in the following minute or so if you're interested XD