Interesting looking pistol. I've not heard of it before. Know nothing other than what's in your post. But if it's reliable and you shoot it well, go for it.
That's what i was able to find as well, its almost a mini high power by design. Cant find much else......Nice looking pistol the slide release looks like it came off a Hi-Power. A bit of googlizing turned up this.
FN BDA9/BDAO DOUBLE ACTION PISTOLS
Modern Firearms - FN Browning HP-DA BDA9