Dont worry, you have lots of time to do more research or go to a game with your parents to find out in person.

The guns are exactly the same inside where it counts.

Do you own one? Have you seen one in person? Have you fired one or repaired one?
Are you basing a recommendation for an AEG purely on looks?

No. Yes. Yes.
No for other AEGs, but in this case yes for F1 and SV.


Like you said, both F1 and SV are same inside, except for outside looks, which is the fact. And obviously, the main differences in looks between F1 and SV are the trigger guard, bipod, and outer barrel.

Yeah, the FA-MAS may be a workhorse but there's not too many parts available, in case something breaks. In his case, the mag-catch...
For me, I'm trying to mill as many metal parts as possible to replace some of the weaker and un-replaceable parts, such as the cheekplate (Hop-Up cover), and the foregrip.

The FAMAS, as is, works. But... it is one of the oldest Marui models, parts are rare, upgrades are rare.
If you want a gun that is totally dependable, pick a newer model with a V3 mechbox (or more recent than V3).
If you are skilled at building parts, go for it.