The lower picture in this post is not representative of a great rifle in service for forty years which proved itself on many operations and theatres around the world. I have never seen such a totally impractical "banana magazine" and I have no idea what the two pistol grip assembly is for, it doesn't even look as if it belongs with the FAMAS.
Edited to add - after a quick google search the bottom right two-pistol grip weapon was a 90's prototype for a personal defence weapon by GIAT industries. The fifty round "banana magazine" on the FAMAS appears to have been a manufactiurer's flight of fancy and was never adopted.
I have commented on the FAMAS several times already on this thread and others on ARRSE. It was a cracking weapon and after using it for five years in the Legion, I was presented with the abortion that was the SA80 A1 when I joined the British Army. The A2 version which came later was better but still not as practical and comfortable as a field weapon compared to the FAMAS.
The FAMAS was replaced and not upgraded because the assembly lines and tooling for it had been scrapped and the very effective, efficient and field-maintenance friendly (no gas parts) delayed blowback mechanism necessitated steel cartridges as brass distorted on ejection, therefore was not compatible with NATO standard ammunition (despite the identical calibre) and was more expensive.
The HK 416F is a practical and timely replacement.