I believe you are reading the section the right way. Some parts of Bill C-10 refer to firearms and others refer to restricted and controlled weapons. There it refers to restricted and controlled weapons, not firearms per se, so that does in fact mean that if a person robs a corner store using a .30-.30 rifle, which he might have a licence for, he would get a four-year minimum, but if he went in with a handgun he would get a five-year minimum sentence. I would think from the point of view of the victim looking down the business end of that weapon, they wouldn't distinguish between what kind of a firearm it was, but Bill C-10 does seem to distinguish between those.
On November 23rd, 2006. See this statement in context.