Canada has fairly strict gun control laws, doesn't it? Much more so than the US, I think. If you wanted a more stereotype-busting super, how about...
Arsenal (or Firepower, or nearly anything sort-of associated with guns, really...)
Johnathan Murray is one of Canada's oldest living superhumans: he participated in (and just barely survived) the disastrous raid at Dieppe in World War II, and, though you wouldn't know it to look at him, is a good 80 years old. After being seriously wounded in action, Murray volunteered for one of the first cyborg programs in recorded history, and was not only healed in the process, but was equipped with some very powerful weapons in the process. Over the years, Murray has continued to upgrade his cybernetics, and anything in his body is comparable to the most powerful technology Viper or ARGENT could put out, thankfully. Despite his cyborg status, Murray isn't full of the self-loathing that many cyborgs are - he volunteered for the conversion process and dutifully and gladly pays the price to be able to protect the free world. Murray is also a well-known conservative in Canada - he has vigorously opposed Canada's high taxes, welfare programs and (in particular) gun control programs, and is a good friend of Charles Heston - he is roughly comparable to an American moderate Republican on most areas, and is less conservative on some social issues like gay marriage and abortion. He has openly and strongly denounced recent initiatives to reduce criminal penalties for marijuana-related crimes. His strong and unconventional political views have, however, earned him the ire of many politically motivated liberal supervillains and even a handful of superheroes, and they have also put his status as one of Canada's state-sanction superheroes in jeopardy.
Powers: Arsenal should probably be an artillery-style blaster - he's screaming for a big multipower full of attack powers like gun-hands, Summon-homing-missle legs, and so forth and so on - probably shouldn't be TOO lethal or cause too much property damage, as he IS a superhero. He should also have subdermal armor and similar powers.
Campaign Use: Arsenal's political views make as good a story hook as any - at the very least, he might get into an argument with highly liberal PCs, especially if their views are well-known. Arsenal should still be a team-player, though - he probably has more experience at it than any of the PCs, too.