variation “Australia” is the late model without crimp.
variation “UK” is with the crimps, but is also correct for earlier AUS
Most UK will also have a dimple at 6 o’clock that was introduced to tighten the handguard support with worn handguards.
L1A1 handguard support will fit FAL. FAL will not fit L1A1 unless the flats are ground out to clear the breeching washer.