The MACO2 cannot be used in Continental France due to these rules
https://www.nootica.fr/webzine…a-chasse-sous-marine.html
The general prohibitions include the following elements:
- Prohibition of hunting for persons under 16 years of age ;
- The use of any respiratory equipment, whether autonomous or not, is forbidden: the simultaneous possession of breathing apparatus and underwater fishing gear is prohibited;
- The use of a light hearth designed to attract fish is not allowed;
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The use of fishing gear whose propulsive force of projectiles uses a detonating element or the expansion of a compressed gas other than by the user himself is prohibited;
- The practice of underwater hunting between sunset and sunrise is not allowed;
- Fishing within 150m of tagged vessels or fishing nets is prohibited;
- It is forbidden to hunt with bottles of oxygen;
- Selling the product of his fishing is also prohibited;
- The practice of underwater hunting near swimmers is not allowed;
- It is forbidden to catch marine animals in gear or nets placed by other fishermen.
Note that the expellable gas prohibition is long standing as it was resposible for the almost complete collapse of the market for such high powered underwater weapons. It was not long before the ban on carbon dioxide spearguns spread around the planet leaving only the USA as one of the few places one can still use these guns legally.