Gauging interest in high capacity bottle kit for Umarex Gauntlet

[DanielL]

My Umarex Gauntlet made 53 fpe out of the box with no mods. It's barrel is accurate and it seems generally slug friendly. 

The only thing missing is good shot capacity from the 13 cu.in bottle (210 ml.) 

Added a 22 cu.in bottle (360 ml) but that doesn't quite double the capacity from the 13 cu in stock bottle. Found a 4,500 psi 450 ml bottle that would over triple the capacity of the stock bottle but require dumping the fore end cover or designing and 3D printing a new one (which I'm leaning toward doing anyway.)

Before I embark on this adventure, with it's large time investment, I'm wondering if other people might be interested.

Thoughts?

 

[FLgunner]

I was looking to convert to a CF 4500 psi bottle as well and was hoping someone would come out with one that would fit inside the forearm cover. I even though about opening up the ID of the forearm so a smallish CF bottle would fit. It will be interesting to see what you come up with for a custom printed forearm...

 

[DanielL]

Given the cost/performance ratio of the Gauntlet, I'm leaning toward an aluminum bottle. It will be heavier for sure, but also can be priced more inline with the cost of the Gauntlet. I'm also leaning toward the new fore end because I hate the Gauntlet having the fill adapter on one side and the gauge on the other. Would like to see a 90 degree design with the gauge at the bottom. It could be plug and play if a kit included a bottle and regulator and new fore end.

 

[Hajimoto]

I was on the same course but saved my energy back in July of 2019 when I talked with my friends at Umarex the Gauntlets being brought to the Pyramyd Air Cup and again at the EBR were going to be EXACTLY what my mind's eye envisioned. Yep, That's a 4500 PSI CF tank inside the Gaunties furniture.

As you can see, Its already a done deal, the vessel is the tank from the Hammer so once that goes full release I'm sure we can make something happen.



Hajimoto

 

[DanielL]

I wonder how it will be priced, though, Haji. CF bottle from manufacturers tend to be quite pricey.

On a funny note, I wonder if we will see this before the Hammer?

 

[FLgunner]

What's the capacity of that CF bottle? Looks to be close in length to the 23ci aluminum tanks that are currently available. This definitely looks promising!

Price would be a limiting factor, somehow paying more for the bottle than the price of the gun seems counter intuitive! I've already invested in the power tune kit and baffles, at some point, you hit that point of no return and have to really consider the options...

 

[DanielL]

Size is .45L, but at higher pressure it equates to over three times the shot capacity. The price wouldn't be much different from the 22 ci.in bottle but it doesn't work with the stock fore end.

 

[FLgunner]

Thanks Daniel! I see you had that info in your original post, my question was directed to Hajimoto concerning the CF tank he showed in the picture he posted. I guess I should have been more specific as to who I was asking. In any event, it appears the CF bottle Haji is referring to fits inside the stock Gauntlet Forearm with no modification to the forearm needed. I was just curious of the capacity of that bottle since it appears to protrude beyond the forearm about the same as the larger 23ci aluminum tank most folks are going with. Sorry for the confusion.

 

[heavy-impact]

I built a gauntlet for my adult son with a 300cc 4500 psi CF bottle. That's the largest diameter bottle that can be fit inside the front stock and that removes plastic all the way down to the metal inserts that the screws go into. One of the screws had to be ground down also. I opened up the front stock with a drum sanding attachment on a drill.

 

[FLgunner]

Heavy-impact, That's exactly was I was thinking of doing. That looks amazing.

 

[dannya1a]

heavy-impact where can one get that exact tank you used?

 

[heavy-impact]

heavy-impact where can one get that exact tank you used?

The .3L tank is no longer available on AliExpress but you may be able to find a .4L which has the same 55mm diameter.

 

[DanielL]

The bummer is all the CF tanks seem to be about the same price whether they are 350ml or 500ml.

 

[Therealld]

I would like a smaller tank, like the .22L on Ali Express mentions. It would still have about 50% more capacity than the stock tank, but look more cool.

How difficult to buy from them, esp shipping cost etc?

 

[DanielL]

Not tough but wait times can be painfully long. Make sure threads are the same. M18 is more common in China. Or buy a Chinese regulator to go with it. 

 

[vdwb]

Gentlemen,

If you go on flea bay and search for .22L, .3L and .37 L carbon fiber air cylinders you should see several for sale. They are made in China and have M18 x 1.5 threads so you will need a metric reg. They are not Acecare tanks, they are made by Liaoning Alsafe Technology. They measure 55 mm (5.5 cm) diameter and 230mm (23cm), 260 mm (26 cm) or 300 mm (30 cm) in length. Approximately $115.00 to $121.00 shipped from China.

 

[heavy-impact]

Gentlemen,

If you go on flea bay and search for .22L, .3L and .37 L carbon fiber air cylinders you should see several for sale. They are made in China and have M18 x 1.5 threads so you will need a metric reg. They are not Acecare tanks, they are made by Liaoning Alsafe Technology. They measure 55 mm (5.5 cm) diameter and 230mm (23cm), 260 mm (26 cm) or 300 mm (30 cm) in length. Approximately $115.00 to $121.00 shipped from China.

You're the man.

I'd go for the .37L one https://www.ebay.com/itm/Scuba-Diving-0-37L-4500psi-Carbon-Fiber-Cylinder-Paintball-PCP-Air-Tank-M18x1-5/174085640409

.3L version https://www.ebay.com/itm/Mini-Black-M18x1-5-CE-0-3L-Carbon-Fiber-4500Psi-Tank-Air-Bottle-For-Paintball/223787308426

 

[vdwb]

heavy-impact,

Thanks for putting up those links, I can’t seem to figure out how to do that with an iPad.

 

[Therealld]

Thanks,

I'll take a look! Might be cute for an AAFTA legal Field Target Pistol.

 

[Droppingpins]

Size is .45L, but at higher pressure it equates to over three times the shot capacity. The price wouldn't be much different from the 22 ci.in bottle but it doesn't work with the stock fore end.

Stupid question. Any concerns with the regulator handling the increase in tank pressure?