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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! Allows for the addition of scopes and other accessories and is easily installed. Compatible with Walther 1250 Dominator air rifle - Compatible with Hammerli 850 AirMagnum air rifle.
