A lot of things are 'available' in France. The dealers don't care who they sell what to. A friend of mine moved over there 3 years ago and has been offered allsorts. 22rf, .410 with Brenneke slugs, centrefire rifles. No subsonic rf though and no sound moderators. He's had to make use of an 'air rifle' mod.
Must be a different part to where you went, because he says there is just nothing on the ground except a few Coypu. Every Sunday morning, the woods are full of guns shooting anything that moves, no matter who owns the land. No bird song, no rabbits, nothing!