FAL has full-auto capabilities...and the FNC is just par of the Family.
They were manufactured as semi-automatic battle rifles, not assault rifles, only forgetsticks mess with the trigger group because they're uncontrollable in automatic (this is a similar story to the M14, they were issued as select-fire but they were uncontrollable in automatic and hence modified).
P.s: I think the L115 is chambered in .338 Lapua Magnum, .338's a pretty high-end target cartridge at $5 a round, sheesh.
And do original CCCP-manufacture AK-47's even exist any more? They haven't been in military use for a hella long time, and the only ones you find today are in museums/private ownership, made by garage smiths or chinese knock-offs. The AKM is/was probably more widespread, there was only 9 years in between the AK-47 and the issuing of the AKM in 1956.