Did Maglite ever make a narrow head like Kel Lite? I could have sworn they did but I'm old🧝♂️
Judging by the early parts sheets on Jason's site they had plans in place to make a large head, but the accepted story is they dropped the idea before producing any. I haven't seen anything similar for small heads. However early Mag-Lite boxes refer to the single Mag head size as "small" on D-cell lights and "medium" on C-cell models so that may be where that idea comes from.
Additionally, several companies were making small head police lights when Mag-Lite hit the market. If you see a B-Lite from behind it looks more like a Mag than, say, a Kel-Lite would.