Date: 9/8/2020 21:41
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Umarex 850 CO2 Adapter

5.015 reviews
Umarex 850 CO2

Note: Gun and CO2 cartridges sold separately

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2x12g CO2 Adapter for Umarex 850 Magnum. Don't have any 88 gram cartridges handy? This useful converter allows you to use two 12 gram cartridges in your Umarex 850 Magnum!

Item Code: Umarex-2251006 [PY-A-1136]

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Average Customer Review

5.0 (15 reviews)
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5.0 5.0

4.0 4.0

By marc from USA on 2017-11-15
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0.00 ratings

Things I liked: does it's job well.

Things I would have changed: try to make it more affordable without lowering quality.

What others should know: 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.


5.0 5.0

3.0 3.0

By Al in Wisconsin from USA on 2016-12-12
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1.01 rating

Things I liked: 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.

Things I would have changed: Cost to high

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


5.0 5.0

4.0 4.0

By Raymond from USA on 2016-10-15
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0.00 ratings

Things I liked: 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)

Things I would have changed: Functionally, nothing. Well conceived complement to the Hammerli 850 Magnum

What others should know: 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.)


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  • Alejandro from USA asked:

    Do I need to put a drop of pellgunoil at the tip of each 12gr tank?

    • Tyler from USA:

      It can't hurt, but is not necessary every time

  • JD from USA asked:

    Can these be filled from a bulk Co2 tank without the 12g carts installed?

    • Tyler from USA:


  • stefan from USA asked:

    Will this work in the Sig Sauer MCX/MPC?:)?

    • Val from USA:


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