If you follow TGS on YouTube they did a video on it. Very interesting, but no thanks. I would go the SA35 route if I were inclined, but even that I'm not.

Neatest thing was, it (the English one) has a different mag disconnect. They seem to feel a safety feature is a good thing, but they acknowledge the original had a detrimental effect on the trigger pull. So they came up with a different type.