I remember being told that you
couldn't really fire them left handed.

Seems like the sort of thing the MoD should consider when purchasing weapons to me...
(SnowyTheWereRabbit the Leporid from Hell, Wed 25 Aug 2010, 11:20, 2 replies)

Yes.
I think this was more to do with the instructor fancying a laugh at the noob.

But I agree - they've spent tens of thousands on extra training right there just by alienating 30% of their forces.
( Je suis un vagabond is an unfunny, up your own arse middle class knob, Wed 25 Aug 2010, 11:23, closed)

Well, no.
Because it really doesn't matter that much, unless you are spectacularly spacktarded, a deeply complicated task like pulling a trigger with either hand isn't really a challenge.

Granted, your natural preference to have the rifle nestling in your left shoulder would be a bit tricky to start off with, but as I said below, couple of spent shell cases to the face and the resulting scars would probably sort that one out.
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 25 Aug 2010, 11:34, closed)