British Army Photographers posted up some videos of soldiers training in CQB and CQM.

Here is the CQM (Close Quarters Marksmanship). The soldiers appear to be using SA80 bullpups, Benelli M4 shotguns and Sig Sauer pistols.

In this CQB video one soldier is using an SA80 with a grenade launcher while his team mate is using some sort of .308 AR. Can anyone recognize what make it is and the giant optic?