Thanks for the review. Maybe I should buy one too. I already have 1xAA, 2xAA and 4xAA lights all I need is a 3xAA one to complete the row. Maybe some 6xAA Polestar and an 8xAA TK41 afterwards:)
Some more images. The led base is 15 mm, and KD XP-G R4 heatsink is 13,5 mm, so it fit fine. Yes, the driver is standard 17 mm, and the driver housing is 20 mm. There's plenty of room to play with different configurations. The threads are the same on the both sides of the body, and theoretically it is possible to made one 6xAA light if someone is willing to sacrifice another flashlight :)
I made a small centering part for XP-G led, because the hole on the reflector is made for XR-E emitter. The current draw on high is about 1 A with XP-G led, and 0,8 A with original Q5.
I have too this flashlight, very good buid quality, I like it without mod
some more pictures here:
Moviles, I like you "muscle flashlights" collection :)
Nice light, but expensive for something to mod. These Chinese makers need to get over the XR-E lights and move on to XP-G and XM-L's. With a 2.8A driver and and XM-L, you've got an AA-powered light that would just rock. But $28 plus a $10 LED and $5 driver gets kind of steep.
Thank you for the extra information ...
260g without batteries (~150g for the head/reflector assembly). ie the head assembly (less pill) of the C88 weighs much more than most P60 hosts, and nearly as much as a complete C8. The heat sinking is this thing looks capable of dealing with much higher output emitters than the XRE Q5 it comes with, but it performs so well as is that I can't see much sense in modding.
I'm with you there; I bought this light to mod it, specifically to make a 'poor man's Maelstrom' with XM-L and 26500 cell... but this light is too nice to risc messing it up when modding it. It has a tighter and brighter hotspot than my Skyline 2 on 2xCR123!
Dang... I guess I have to get a second one to mod it 
If you get two then.. you'll have twice as much fun:p with 4 battery packs / 2 spares and extra body tube and ...
maybe a neutral xml not overdriven 600lm with a sexy tint .nice driver with no disco flash or bad pwm ..
EDIT : great light .. time to buy another one.. gonna mod this one to xpg and the second one to a neutral xml and play lego with the two and their parts ..:)
Great review..
Thanks for showing the internals..
I like the screen name you'll like this light it;s a fatty .. it weighs 360 grams with batteries in it .. it's a hefty beast . I think most people who have it really like it . I 'm sure i didn't know what a real thrower was until I got this light .i'm impressed , looking forward to modding it as well.
I will try take an outdoor beamshot later 
Is the default driver in this thing regulated or DD? Thanks.
Agenthex why did you have to revive this thread I really want this light I have put it in my cart about a dozen times it would be so sweet with an XML driven at 2.8 amps.
I have modded my MCU C88 with XM-L T6 and NANJG105 driver, great throw capability, just get it and mod to XM-L, sure it will give you a smile 
this is TK567 and modded MCU C88 beamshot
Well, someone I know wanted a AA light, and I was trying to figure out if this is regulated or not, because the decent 2AA ones kind of are by default since they use a boost driver. It would definitely be pretty sweet w/ xml but they're flashlight noob so prolly makes no difference.
Thanks Handy, that thing is awesome.
Agenthex this light is the perfect one to create another flashlight enthusiast.
Yeah, if not regulated it's like a really fancy 3aaa light. :D
I've been wanting one of these to mod (XML/driver) since the original post. I think It would be great having a 3AA XML light (with the option to pull the carrier and use li-on). Add it to the list of lights I want to get. :)
There aren't a whole lot of duplicates of this light in your collection