Umarex 850 CO2 Adapter

does it's job well.

try to make it more affordable without lowering quality.

make shooting the hammerli 850 magnum more flexible , you are not committed to 200 shot with 88g cartridge. i shoot 50-60 shots for about a dollars worth of 12g cartridges.

Have not used it, it's winter in Wisconsin 9 degrees this am. Received in 3 days and highly recommended by your experts to buy and save by using 12 gr not 88 gr co2. Excellent condition, waiting to get into warmer place.

Cost to high

PA customer service has always been outstanding and should be your go to place for any air gun sales and help of any kind.

Ability to use the more economical 12 g CO2 cartridges either single or double (One live and one used cartridge) for various shooting situations. Very high quality engineering is evident. A very solid, sealed cylinder. Being able to remove the adapter with the 12 g cartridge (-s) sealed inside is terrific. You simply can't remove a partially used CO2 cartridge from your pistol or other single CO2 cartridge airguns. For frequent practice, it's perfect. For longer sessions or friendly contests, go with the 88-90 g cartridges at $7-8 a pop. (Pun intended)

Functionally, nothing. Well conceived complement to the Hammerli 850 Magnum

While the initial purchase price of $100 will likely dissuade many from purchasing this adapter, with time, it will pay for itself. This adapter actually encourages the user to practice frequently instead of episodically as an inexpensive CO2 cartridge is all that is consumed. If you think that the 88-90 g cartridge is still the way to go, try to get the full 200+ shots out of one. The pressure starts dropping off well before that and your accuracy suffers tremendously. "Bite the bullet" and buy the adapter! (Disclaimer: I don't get any commission for any sales.)

The ability to shoot around 65 shots per session.

Lower the price a little.

I've read about people using a penny to separate the powerletts, I tried without and have no problems. Puncture both fine, lasted 2 and a half days.
More of a convenience that a necessity.

it works well, holds co2 gas in, no leaks.

maybe price, other than that it is a good product.

very good cartridge adapter, works well, no leaks.

Works great, my second one.

Lower the price to maybe $50

You need this item if you plan to shoot a lot with your Hammerli. Pricey, but pays for itself in the first year.

Precise, top quality item. Excellent manufactured product, works perfectly.

Maybe a lower price, but I appreciate quality, and quality costs.

I tried using this without inserting a penny between cartridges and it worked perfectly. I tried using the penny and it also worked perfectly. The holes in the cartridges were slightly larger using the penny. I guess what I'm saying is don't worry if you don't have any change in your pocket, it's not needed in my experience. This is a nice item and if you shoot the rifle a lot, it will pay for itself eventually. Even if it doesn't, the hassle of laying out a lot more money for the 88 ounce carts and finding them at local stores is not worth that to me. Your time and gas to drive to the megala mart ends up costing you more in the long run. One of the nice features of this tank is that you can remove it from the gun without losing any air and it holds until you are ready to shoot again.

This CO2 adapter is a great addition to my Hammerli 850. The larger 88-90 gram CO2 tanks are very difficult to find in my area. I really like the ability to use 12 gram CO2 cartridges and be able to remove the adapter without loosing all the CO2 in the cylinder.

A little expensive but worth it to me.

I have to use a penny between the 12 gram cylinders or else one will not get punctured when installed.

I like the versatility this adapter gives me. If I don't have enough time to consume an 88 g CO2, I can use this adapter with 2 12 g CO2. I get about 80 shots per two 12 g CO2 which is just enough for about an hour to an hour and a half of shooting.

Nothing

I've successfully used this adapter with Crosman 12 g powerlets without having to use the penny that others have recommended using. Unfortunately this adapter is an inch and half too long to be used in the Walther Lever Action rifle. When installed in the Walther rifle stock, the stock cover can't be reattached.

The adapter works very well. So far no issues. A must accessory for the Hammerli 850.

A little pricey

I read of people having some problems with there not being enough tension between the 2 12gram co2 cartridges. One fellow said he solved it by placing a penny in between them. I did this right off the bat.