Grimm reaper replacement blade kits

[270WINCHESTER]

Ive been looking at getting some grimm reaper mechanical broadheads, but before i make my final decision on them i want to make sure i can get the replacement blades for them. Does anyone know where i can purchase these in Canada online stores? Or anywhere in Calgary?
Thanks

[backyard]

any store that carry's the broadheads should carry the replacement blades if they don't have them they will be able to get them