Site seems to be working OK.
Umarex CO2 Saver
Umarex CO2 Saver
FYI, it will not work on the Umarex 850M2, tried it with a empty tank so can't speak to how well it works but the cover won't go back on all the way. Probably could to modify the cover to make it fit, if I could get a spare I might try it but not on my only cover. I'll give them a call and see if the cover is available for a reasonable price.
Re: Umarex CO2 Saver
Bummer Dave but I would think you could return that at Amazon. I saw one of the Umarex 850's for sale on another forum for 240.00 brand new in the box. Its in 177 caliber.
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Re: Umarex CO2 Saver
How does it save CO2?
Hi, my name is Gene and I'm a Henryholic from Wisconsin.
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Re: Umarex CO2 Saver
Very interesting. I'm a newbie when it comes to CO2. I am enjoying it, though. Definitely has a place in my shooting.
Re: Umarex CO2 Saver
Its an adapter Gene that allows the use of one of the smaller CO2 cartridges rather than the 88g that the gun normally uses
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Re: Umarex CO2 Saver
No, the CO2 saver is a small unit with a valve that you attach to a 88g cartridge so you can remove it from the gun without losing any CO2, it makes the cartridge a little too long to get the cover back on my rifle.
I'm pretty sure the 2x12g adapter will work, UmarexUSA's site has a link to it on the same page as the 850M2 rifle and it supposed to be the same size as a 88g cartridge. According to UmarexUSA it's supposed to back in stock mid to late May.

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Re: Umarex CO2 Saver
Thanks.dave77 wrote: ↑Thu Apr 15, 2021 2:10 pmNo, the CO2 saver is a small unit with a valve that you attach to a 88g cartridge so you can remove it from the gun without losing any CO2, it makes the cartridge a little too long to get the cover back on my rifle.
I'm pretty sure the 2x12g adapter will work, UmarexUSA's site has a link to it on the same page as the 850M2 rifle and it supposed to be the same size as a 88g cartridge. According to UmarexUSA it's supposed to back in stock mid to late May.
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Hi, my name is Gene and I'm a Henryholic from Wisconsin.
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Re: Umarex CO2 Saver
Sorry I thought it was so you could use the smaller cartridges. I read it wrong
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Re: Umarex CO2 Saver
Hey Dave how are you liking the Umarex. I see there is a place on Amazon where you can get 5 of those big 88g CO2 cart. for 40.00. Thats a pretty good deal.
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Re: Umarex CO2 Saver
Was also curious Dave what height rings you used on the scope.
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Re: Umarex CO2 Saver
Local Sportsmans Warehouse carries 2 packs of the Umarex 88g cartridges for $16 so about the same price. Still waiting for the 12g adapters to come back in stock. Also need to call them to see if I can get another cartridge cover, I think I can make it fit the valve adapter with a bit of trimming but don't want to mess it up if I can't get a replacement for it.
Re: Umarex CO2 Saver
These are the rings I got for it, work great, seem to be very well made.
https://www.amazon.com/dp/B077TMJ1P7?ps ... ct_details
Re: Umarex CO2 Saver
FYI, the 2x12g adapter is back in stock. BTW, if you only want to use one 12g cartridge you can load it with one full cartridge and one empty cartridge.
https://www.umarexusa.com/2x12-gram-co2 ... air-rifles
https://www.umarexusa.com/2x12-gram-co2 ... air-rifles
Re: Umarex CO2 Saver
Thanks Dave after buying the HW 97 I think I am good for now on pellet guns
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Re: Umarex CO2 Saver
Got the 2x12g adapter today, fits fine in my 850 M2, should fit in any gun that uses a 88g CO2 cartridge. I didn't realize that it has a valve so you can remove it from the gun when it still has some CO2 left in it although you do lose a little CO2 when removing it. If it ever cools off enough to do some shooting I will find out how many shots I get on 1 and 2 12g cartridges. It's been in the high nineties and hundreds most of July and doesn't look like it going to cool down anytime soon.
Re: Umarex CO2 Saver
Id be curious also to see if the velocity is affected by only using one or 2 Cartridges.
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Re: Umarex CO2 Saver
I don't have any way to accurately measure velocity, I could compare how much they penetrate into a board.