No, they would not be illegal, however, the firearms themselves may not be eligible for grandfathering if Bill C-71 were to pass.
On June 7th, 2018. See this statement in context.
On June 7th, 2018. See this statement in context.
Director, Firearms Regulatory Services, Canadian Firearms Program, Royal Canadian Mounted Police
No, they would not be illegal, however, the firearms themselves may not be eligible for grandfathering if Bill C-71 were to pass.
See context to find out what was said next.