Left side mount/dismount. Firearm isn't an issue, as I carry slightly behind my right hip (4:30-ish).
It's actually pretty difficult to get a restricted weapon here, although the easiest way would be to smuggle one in from the US where they are easy to come by illegally. The fact is that if more guns kept people safe, the US would be the safest place in the world, although the evidence seems to indicate otherwise. I think criminals and even police are much quicker to shoot first when in doubt if they see a gun on a citizen or reasonably expect others to be armed. There's lots of evidence for that too. Then there's all the self defence weapons that end up shooting someone's kid or another family member.
Recent statistics show roughly 33,000 gun deaths per year in the U.S. Take away 2/3 of that for suicides, and the VAST majority of the remainder is the result of gang violence. Get rid of that, and the "gun violence" problem in the U.S. is virtually non-existent.
There are more guns than people in the U.S., including over 100 million LEGAL gun owners. WE are not the problem, and neither are our guns. And for what it's worth, even on a low-side estimate (based strictly on those which are reported), there are over 55,000 DEFENSIVE gun uses each year. That's over 150 times per day that a would-be victim successfully defends themselves with a firearm. What would all these statistics look like if we (law-abiding gun owners) were not allowed to own firearms?
We have an entirely different criminal element here in the U.S., as opposed to the other "developed" countries which left-leaning politicians love to point to when comparing gun violence, and that's exactly the reason we continue to fight for our 2nd Amendment rights.