I have no idea how I missed this, but the Forgotten Weapons blog has an excellent post up about the FFV-890C. The FFV-890C was the Galil variant submitted for the Swedish service rifle trials in the latter part of the 1970’s, which the FNC eventually wound up winning.
Most of the modifications are nothing terribly special, but the case deflector on the dust cover was a clever idea. The cross-bar safety on model 2 is just flat-out weird, though… seems like they should have just gone to the drawing board and redesigned the entire selector system.
Speaking of which, there’s one other Galil variant out there that doesn’t get a lot of discussion: the Bernardelli Mod.378 VB-SR. This was license manufactured by Bernadelli in Italy. The only major user is the Italian national police SWAT force, NOCS, although I’ve also read that the Italian Army also uses it for M203-equipped soldiers/grenadiers. The major improvement is that it was sometimes manufactured to use standard AR-15 mags. I’ve heard rumor that other things may have been changed, but I’ve never seen a list or any solid info.