Good luck finding Shooter accessories in Canada. I've been looking and have yet to see a retailer carrying anything Shooter related. Also the Canadian rep for Ares sucks. I was directed to Zshot (US rep) after not being to get anything out of the Canadian rep. Still waiting to hear from them for over 2+ weeks here. Not very impressed with either for their customer service.
I believe most of the accessories are compatible with other brands if you're looking at another route. It depends what you're looking for.