Z2 LED combat ring replacements?

[foxtrot824]

I recently picked up a Z2 LED SF and found the combat grip rings to be very useful on other lights. I am wondering if any one knows where to order extras. I'm looking for both the rubber "place holder" and the flared rubber ring. I have attached pictures of my EDC sporting these rings.

 

[Kestrel]

Similar need here, I am looking for a combat ring for a friends' homemade C3. I recall someone suggesting plumbing supplies a while back...:thinking:

 

[blitzlicht65]

I think there are a lot of people who need this grip rings as a spare part for other flashlights.

Are they available from Surefire directly?

(A group-buy would helpfull for the members outside from the US.)

I have a SF combatring on the Raptor (taken from my Z2) and a O-ring (20mm x 5mm) on the Ti Raptor:

 

[foxtrot824]

I'm thinking I may just call SF and see if they can be purchased. I have a feeling they would send free replacements if they were damaged but not to put on another light:mecry: