I ordered the GuerrillaAir "FUKU" model bottle regulator 6 months ago and ran it into my 88/45 bottle.

First let me say that Guerrilla has excellent customer service. I got my reg 2 days after the order.

Second, inspecting the reg out of the box...it's a nice looking reg. Machining quality is top-notch (no visible tool marks) and the anno is perfect.

Third, It's a bottle reg. It just screws into the bottle without tools or worries. Just make ABSOLUTELY SURE you screw it in ALL THE WAY (my own little version of a disclaimer here). It seats properly and you are golden.

Fourth, after the 6 months of 'testing' I have to say I'm seriously impressed with this reg.
I've used it on the following markers without a single issue: My -
Seriously upped Stage 5 Ion;
Stock Ion;
2001 Cocker;
68 Classic Mag;
68 Classic Mag with ACI 8 Stage X-Chamber
PMI 68 Magnum;
Traccer;
Diablo Pump (Trracer clone);
Tippmann M98 (old version);
(buddie's) Tippmann 98C;
(Buddies) LP Spyder Imagine;
(Buddies) BE Spyder clone [unknown model].

Some of these markers are LP (My 2 Ions, the Imagine is an LP conversin I created for my buddy). There was NO shoot-down in any that I fired. The recharge rate was almost immeasurably fast.

The Cocker is a medium-pressure marker and same results.

The HP markers responded extremely well to this reg...considering they're not 'quality' markers (in the sense that they are stacked or in-line-tube blowbacks of lesser quality or elevated age) and no issues could be detected.

Fifth, Price. The reg is well worth the cost I paid for it. I like it so much, I just ordered (a few hours ago) the "Myth" reg to try. It's the "upgraded" version of the "FUKU" and it should be here in a few days at most. The reg body is [advertized at] only 3/4" long...I gotta see this. I'll compare the size and add pics later (if I can - If not, I'll add another entry to this review).

I rated the fit/size a "9" because it's kind of long...much like the older AA regs but it's not unseemly or awkward though.

I wish all bottle regulators were like this reg. Overall though, a definate 10/10 in my book.




   

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Please see the separate review for their Myth(TM) regulator.

pics now included