Crytek or Saber seem to have used a broken, unfinished version of the SCAR Model in the Remaster on all plattforms. Until this is fixed, I have restored the old (finished, more detailed) model for the Remaster.
Release of the mod. Just drop the "zz_SCAR_Fix.pak" into your "Game" folder in the install directory of Crysis Remastered and you should be good to go. Enjoy!