I don't want to try and start a what if thread, as this debate about the retention of the FN has been hashed over at CGN, and by people still in the loop.
The C1 is not an overly accurate weapon, and could not be made to do so. Also, since no-one makes the parts any longer, you would be fielding a gun that has little or no support short of cannibalisation. I don't mean to insult the soldiors who trained on the FN family of rifles, but every armed force in the world, right down to the rag tag militias in the jungles, are told that their weapons are the finest ever made, and their forces are the best trained. While that sense of pride is important for the morale of a fighting force, not everyone is in 1st place. And the FN does not have a major place in todays battlefield, given today's doctrines.
The Cf is run like a business these days, and the 25 year stock of parts like we used to carry in the 50s is over. C7s can be had for under 2K each; add another K for the scope. If we wanted a 1/4 million of these in war reserve, we could have them, all for less than the Liberal's adscam budget. But the anticipated need is not there.
And do you really think you could conscript a quarter million of todays civilians into a war? By the time they finished with the harrasment complaints, the human rights complaints, the discrimination complaints, any war would be long over.

From a collector's standpoint, as each truckload of rifles got smeltered, mine became more rare.