Prince Harry, aka Captain Harry Wales, was training with the Australian Defense Forces. This video was released on Friday by the British Monarchy on Facebook. Click that link to watch a higher resolution version.
Here are some screen shots from the video. Captain Wales looks to be using a DMR of some kind. With a Nightforce optic and Spuhr mount.
A better shot of the Spuhr mount and you can see his DOPE on the stock.
Here he is rocking a MP5 with rail system and suppressor.
Here it looks like Harry is using simmunitions given the blue barrel and the transparent magazine. Anyone recognize the make of the mag or simunition setup?