For those of us that actually want to decrease the FPS in GBB pistols, where does one buy cans of duster gas? 
I’ve only ever seen it in bottles which aren’t compatible with filling GBB pistol mags. 
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Laser Air Duster is what you seek my good man. Readily available from a major stationary supply company near you.
Ask for it at the front desk. They keep it behind the counter as the kiddies keep knocking it off to get off their faces. Those fucking whippersnappers…
Finally got mine delivered - lol the thwack from the gel hitting the box is louder than the blaster 
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Re Duster gas,
Once you rip that plastic trigger off you are gonna need an adapter for your inlet valve. I just jimmied one up from a spare nozzle for a tube of super glue I had lying around and that seems to be working fine for me.
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Good stuff… gonna give it s crack next time I go to Officeworks. 
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Officeworks….or…
“Offyourface-it works”…??
Beware the dark side, of the duster….
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What gelblaster…
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That’s admission of intent, tight there…!!
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Maybe I shouldn’t have used the word “crack” there. 
Lucky enough to have BME drop his spare MK23 around for me to have a play with today.
Gives me an opportunity to see whether I want to keep it on the top of my want list or not… mixed feelings about it so far.
It’s good, it’s different, it’s unusual…
But I really wish someone would manufacture a NGBB based on gels from the ground up and not just a conversion.
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The plastic slide is the only thing holding me back at the moment. For $650 I’m gonna want a metal slide on that sucker.
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True, it’s plastic… but seeing as how it doesn’t actually slide being non-blowback I’m okay with that. It’s solid enough…
I guess if this was mine I’d dial back the FPS to make it accurate with the noise suppression… as it is now, as good as it is, if I can’t hit a large target that’s more than 5 metres away without spraying all around it, it wouldn’t be much use to me.
But I love the NGBB concept. Would I buy one now that I’ve had a chance to get to know one up close and personal?
Yeah… I would, definitely. Even if just for the double action and ultra quiet operation. It’s debatable whether gassing down for accuracy would make it non-functional, info from the airsoft community seems to be vague. Some recommend low powered duster gas, others say minimum 12kg green gas. But getting the power down to somewhere around the 250-280FPS range would definitely make the MK23 accurate and therefore more practicle.
For now, I get the same level of stealth out of a manual KELe Glock 17 hitting at near 200FPS with lethal accuracy… so I guess I can wait for a MK23.
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Yeah, the first thing I would do is switch to duster gas as I really think for anyone looking at noise reduction, it’s really just a no brainer.
Then I would fuck that ugly long suppressor off and switch to a shorter one that is as fat as possible whilst still providing a full sight picture.
Next I would custom build the new suppressor internals from scratch using a baffled system and provide a slight increase in the diameter of the holes in both the baffles as well as the end cap to provide better clearance for the gel.
I think that these changes would result in a whisper quiet pistol that is highly accurate and easier to use in the field.
Oi! I like the look of that ugly long suppressor. 
I take your point about the larger bore in the baffles though… because whatever happens to the blaster during the conversion, it definitely doesn’t happen to the supp.
It’s still set up for airsoft BBs.
I’ll trialling duster gas in it tomorrow… although I know BME likes his high FPS. So it’s just for info purposes and in the name of research.
Interestingly, duster gas is the gas that TM recommend.
I look forward to hearing the results of your testing. I think you will be pretty impressed.
Bit of an afternoon gassing a MK23 mag and swapping gels around, but results…
Suppressor on or off didn’t make a significant difference to FPS so won’t report on those results one will do both.
Started out comparing Puff Dino 12kg green gas, duster gas and regular butane. Dropped off the butane after one test due to woeful chrono readings… around 150FPS.
Gels used were Goat Balls, iHobby Ultra Hards (the latest version), and my personal favourite medium gels War Interest Reds.
W.I. Reds (average 7.4)
Duster 210-220FPS
12kg GG 280-290FPS
Goat Balls (average 7.3mm)
Duster 200-210FPS
12kg GG 295-300FPS
iHobby Ultras (average 7.4)
Duster 215-220FPS
12kg GG 280-290FPS
The conclusion I’ve come to is that duster gas drops your FPS by an average of around 75FPS compared to green gas. The pistol’s obviously much quieter too, particularly with the supp fitted and more accurate and controllable.
Suprisingly, the most accurate combo was green gas with WI Reds.
One thing that became evident is that when these were converted from 6mm BB to 7.5mm gel, new mag lips were 3D printed and the mags modified to accomodate the larger gels, but the gel followers weren’t made wider to suit the new channel size. The upshot is there is a lot of free space between the follower and the gel channel sides which allows the follower to sit at weird angles. It’s the reason why the last few gels will usually not feed. With the follower kicked at an angle it fouls on the mag lips and feeding stops.
Mag lips will be coming off soon and I’ll look into adding material to the side of the follower to keep it straight under spring tension. Or maybe use a follower from a regular gel mag.
Post Edit : Taking out the mag lips showed them to be broken. hopefully not an ongoing problem.
Lifetime replacement warranty, on mag lips, with AH…
Ring him up, and for a few new ones to be sent out…
Okay, so replacement mag lips needed minimal smoothing off with fine wet and dry to stop the occasional gel getting damaged
Swapped the narrow OEM TM follower over for a wider unit from aGolden Eagle mag, so no more misalignment. Feeds flawlessly to the last gel now. That also needed minor tweaking and reshaping but works perfectly. The TM follower works, just not as well.
Something else to maybe keep in mind is the TM mag spring… it’s a fair bit skinnier and shorter than most, so an original TM spring is required and I believe AH installed a lighter spring to prevent gel crush.
Being such a unique blaster, availability of replacement parts through AH is the go in the event of a breakage. Buying a few extra mag lips and maybe a follower spring or two from AH now is a cheap way to future proof the MK23.
Overall though AH did a really good job on the conversion to gel.
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I remember brad saying that they swapped the spring over to a weaker one, as the TM spring was much stiffer ( for airsoft) and was crushing gels.
Brad has said lifetime mag lip replacement on 3d mag lips…he will provide the lips for free, but will pass on the cost of postage if you dont drop in and pick it up, in the flesh.
So, mag lips should be available, as long as he’s around.
It would be nice if he could release the 3d print file, but im assuming he wont.
Unless you take a cast of if, and can reproduce with another material.??
I might need to go instore.
Do you know if he sells the mag lips as an item or does he just do replacement?
I shouldn’t be lazy, I should call up and ask myself.