sell MILSURP

[Sunray]

The firearms are sold just like any other firearm in Canada. A lot will depend on what you have, what, if any, accessories are included and it's condition. Plus a bit of where you are in Canada(shipping costs, for example, are set by the carrier, not you. And there are laws about who can be the carrier for firearms. Worse with restricted stuff and ammo. If there is ammo involved.). The kit is about what it is and condition too.
Most firearms forums have an "exchange" forum. Good, clear, reasonably sized, pictures matter.
Plan 'B' would be a gun show.
Above all, you need to know what stuff is worth, here. U.S. values mean nothing here. So the prices you see on the assorted U.S. sites don't count.