The ingame famas looks like a F1 with a trigger guard of G2. As you mentioned the magwell is different and the G2 should also have a hand stop bump at the front of the stock. I wonder how Ubi ends up making these modeling errors or if it's intentional.
The ingame famas looks like a F1 with a trigger guard of G2.
Yep, that's basically the G1 concept rifle in a nutshell, though G1 also includes the slightly remodelled foregrip that goes on to appear in the G2 design.