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Military Arms of Ostrava

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Military Arms of Ostrava (MAO) is an arms manufacturer based in, as its name suggests, Ostrava, in the Czech Republic. Several of their products are featured in Deus Ex: Human Revolution.


  • MAO produces the PAX-22 Tranquilizer Rifle, a single shot, break-action tranquilizer gun intended for use on animals, however they are sometimes used to incapacitate humans without killing them. MAO does not produce the darts, rather they are manufactured by Kaiga Incorporated.
  • The Widowmaker TX, a semi-automatic shotgun, is also produced by MAO. The TX is fed by a 6-round drum magazine, and can be modified in several ways, including a 2-round burst. This are a fairly popular shotgun, being used by several agencies such as the Detroit SWAT unit.
  • MAO is also known for producing Riot CS, or gas grenades. Riot CS knocks out organic enemies caught in the gas cloud after being thrown.
  • MAO also manufacture protection equipment, such as the hip pads used by some Belltower security guards, and the helmets worn by heavy troopers, all clearly marked with the company logo.

Trivia Edit

  • No such company exists in real world, but it may be an allusion to the real world company Česká Zbrojovka Uherský Brod (more commonly know simply as CZ or CZUB). This company is known for simple, but reliable and cheap small arms such as CZ 75 handgun (used by police forces around the world), Scorpion vz. 61 submachine gun, Sa vz. 58 assault rifle or more recently, CZ 805 Bren and CZ Scorpion Evo 3.
  • In the book Deus Ex: Icarus Effect, Secret Service Agent Anna Kelso speaks of a nondescript MAO Submachine gun used by the Juggernaut Collective. This gun's low price and ease of use have made it and the Heckler & Koch MP5 the weapon of choice for terrorists, revolutionaries and other paramilitary groups worldwide, replacing the 80-year old AK-47.

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