In my county, annual camp 2008 14 ctt managed to get hold of some A2's for the senior cadre's field phase, provided they all passed WHT's etc, and all cadets using them were given range time beforehand. However, I have been told that that sort of thing will not be happening again as the top brass deemed it to be 'too much like the real thing'- a fallacy IMHO.
The conversion kit is a .22 conversion for indoor range,it has been withdrawn from service ages ago.
When I did my short range course a couple years back,I was the only one who knew how to use it! Not even the instructors knew!!