Beretta A400 Parts

[the spank]

Ok folks where in Canada can I source one of these? Gas piston/ring assembly for an A400 Xplor 20 gauge. As you can see the ring is broken after less than 10 flats of ammo through the gun but warranty is long run out and Stoeger doesn't return or answer emails or phone call inquiries to purchase the part. Anybody else in Canada carry Beretta parts or am I going to have to have a buddy in the US order me one from Coles?