The rifle pictured is a British L1A1 with SUIT sight. (SUIT pouch beneath.)
It is a modified FAL, the main differences being the deletion of the selective-fire feature, folding cocking handle, sand cuts on the bolt, lack of last rd hold-open, the furniture (giving a better cheekweld,) and a damn good magazine/latch lip.
It is, in the opinion of many, the best variation of the FAL.
Personally I’ve never had a stoppage on these models.
Anyway, back to WWII era firearms.