Flash and bash Surefire M6?

I live on a small 8 acre farm in Costa Rica. Theft is a fairly common occurrence here. At night I patrol the property once or twice with my dog and Surefire M6 in-hand to discourage any would be thieves lurking in the darkness. I currently have a Surefire M6 guardian with a lumensfactory Seraph P7 M Series Turbo Head (3 Mode Version) running off a trio of 17670s courtesy of an Odd Mods battery adapter. I want to convert it to something reminiscent of a club to serve as a dual threat weapon hence the thread title "flash and bash". I was think of doubling the body length to accommodate a second 3x17670 adapter. By doing so I would double my run time (20 min now) and also make it a more formidable club. Are there any existing extensions out there that I could accomplish this with or maybe someone who could fabricate an extension?

FIVEMEGA sold an extension that would hold six 17670's. Just the extension you need.
here is the link that shows his 52mm extension:
http://www.cpfmarketplace.com/mp/showthread.php?119527-6x17500-Rechargeable-M6-by-FIVEMEGA

GoodLuck with your quest.

This forum does not condone the use of flashlights as weapons.
However if you were to want to make the light longer in order for it to be more comfortable in your hands. I would recommend an M4 body with extensions.