Hong Kong Legends has ABT 2. They couldn't get the rights for the first one.
They also have BULLET IN THE HEAD, THE KILLER, and I think ONCE A THEIF.
I am really looking forward to BULLET IN THE HEAD since the region 1 DVD will be released by Disney and most likely severely cut to get an R...
Here is a link to a review of two versions of ABT.
http://www.loveandbullets.com/abt.htm
The Anchor Bay is the better choice even though it has a ten second dropout in the beginning of the film.
The "OFFICIAL" reason from Anchor Bay is that it is just the mix and that their master had sounds...