holtz58;
You have a 7C Kel-Lite with a "Yawara"(sp?) endcap, which was designed to be used on the smaller Kel-Lites so they could be used as a "Yawara stick" for defense.
I've only seen one of those endcaps on a "working" Kel-Lite (around 1977); a Security Officer working at a bar (where fights were almost a nightly occurrence), told me he used the endcap to "wake up drunks" passed out at the bar. The S/O said he would take his flashlight (IIRC a 5C Kel-Lite) and "roll" the endcap along the drunk's arm (or, presumably, any other exposed body part), which would pinch the skin. The drunk would wake up (hopefully), and then be taken outside. I never saw this done, so I have no idea if this would even work (wouldn't want to try it). That's what this S/O told me he used the endcap for, when I asked him about it "way back when."
When I carried my 7C Kel-Lite (I was a Sheriff's Explorer), I placed a baton grommet over it, and placed it in a straight baton ring; Deputies I knew who carried 6C Kel-Lites (they didn't know about the 7 cell, until I showed them mine), would also place baton grommets on them; however they placed them in side handle baton holder, which was more secure. These Deputies carried the Kel-Lites in place of their side handle batons, to use as impact weapons. I only saw one Deputy with a Kel-Lite Baton Light (IIRC it was the 26" version).
Mike