I suspect references to "lower band" on the SMLE Mk.III are the result of someone erroneously applying the nomenclature from one of the earlier or later models, many of which do, indeed, have upper and lower bands. Of course if we go back to some pre-Lee Enfields, there's a mid(dle) band, too.
Attachment 67919
Another interweb favorite is "top handguard". Ever seen a "bottom" handguard? (Upper and lower are OK when we have tandem handguard sections, but it's never top and bottom. Go figure!)
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