Also, I broke open one of mine by boiling it and then using strap wrenches. It took a few tries. Let it sit in hot water a looong time.
Either you have the old style KL3 that is ribbed and has flats around the circumference (has the older type black goo) or you got lucky and found one of the newer style that was not "bathed" in locktite because I have tried several "Round" style KL3 and KL5 heads and there is almost no amount of heat you can add to release the red locktite Surefire uses. Not without damaging things. It requires special tooling and is a PIA to get open. Theres been some threads about this and it seems it can be hit or miss.
I destroyed a KL3-BK while trying to get it open but was lucky with a KL5 that almost had no loctite at all. Don´t have the KL5 anymore but still do have the c2m adapter from it.I have tried several "Round" style KL3 and KL5 heads and there is almost no amount of heat you can add to release the red locktite Surefire uses. Not without damaging things.
I destroyed my kl3 head
I destroyed a KL3-BK while trying to get it open but was lucky with a KL5 that almost had no loctite at all. Don´t have the KL5 anymore but still do have the c2m adapter from it.
Eric
Sorry to hear that my friend. Now you know why I stay away from the more modern design KL3 heads. It's hit or miss. More miss. Even I scratched the Sh*T out of my original KL3 trying to get it open and I was SUPER careful, used a flame torch (no chance boiling water would have been enough BTU's to get the job done) and monitored the head temp just to be safe but rubber strap wrenches will never open a stubborn/ problematic KL3/KL5 head. You'll find a replacement on that "Bidding" web site if you give it enough time. You will find a seller who has decided to part out his light. It took me about 18 months to find a decent KL3 to replace the one I buggered up.
It was my own fault. I roasted it with a butane torch for over 10 mins and tried strap wrenches. Melted parts of the straps. No luck...
Then, i tried to place it on a vice and I only got chunks of the collar breaking off
That red stuff is pretty amazing.
I still have the lens cap and tir. Found out it fits the m2 head. I'm just debating if I want to gamble about 100$ to build a prototype m2 head tir with sold copper to a c host just for fun.