Q&A's:
"Does this fit the larger mag lites or small ones."
Nancy, it says the Maglite D-Cell light will fit, that's as big as a Maglite there is.
"Will a Streamlight ProPolymer 4 AA LED Flashlight work with this ring?"
Charlie, we think this ring is a little to big for your light, you might want to try this P/N 75906 it's a little smaller and your light should fit .