The 850 Air Magnum was well known and widely respected in the airgun world. As a CO2 multi-shot, full-power rifle, it offered an affordable all-in-one kit.
The 850 M2 by Umarex is the 2019 upgrade, available in .177 or .22 multi-shot and still powered by 88g CO2 (2x 12g CO2 adaptor available separately). The 850 M2 also features a list of upgrades, including a new and improved synthetic stock with adjustable cheekpiece, metal eight-round magazine as opposed to plastic, and a new oversized bolt handle.
The 850 M2 is available with the Empire Kit which includes the rifle in either calibre, Walther 3-9×40 scope and mounts, silencer, bipod with additional Weaver rails for more accessories, paper targets and pellets.