Leafing through the archives, I chanced upon this thread from five years ago- that was a bit before my time.

There are names of contributors present we don't see anymore, and a couple we do; but a slight mystery remains hanging here they didn't resolve: whose barrel recoil mechanism was it? There's a suggestion from 'Leibstandarte Shield" that this is a product to be made in Europe by Europeans. It just needed an entrepreneur. Later it's suggested that it's not a barrel recoil really, just track recoil. If you look carefully, however, you'll see that it really
is a recoiling airsoft barrel.

An efficient one at that.
It can't be the system later developed by Taigen, and marketed for the Tiger 1. After all, Florida isn't in Europe.
I'm curious because I'd like to see details of the mechanism used, and whether it differs from that marketed by Taigen. If so, is it one we could modify our own beasts with easily? Since Heng Long are only going to be producing Airsoft/BB
tanks in future, this becomes a more relevant question.
This was the original thread...
viewtopic.php?f=182&t=10382
"Get your facts first, and then you can distort them as much as you please"- Mark Twain.