Basically, a yard sale for helicopter gunships, tanks, artillery, large quantities of automatic weapons, and other useful tools for starting and finishing small wars.

Coming in two forms:
* Legal: Organised by a government or big corporation and taking place in a conference centre. Attract protestors.
* Illegal: By a crime gang or terrorist group, located in some field somewhere. Attract police and military.

While it has almost certainly occured in fiction, having a HoodOrnamentHottie in skimpy camo holding a large machine gun sounds too much like self parody for any real company to actually do it, regardless of what occurs at E3.

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!!Examples:

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[[folder:Anime & Manga]]
* ''Anime/{{Steamboy}}'' is set at one.
* A short for ''GundamSEEDAstray'' shows Lowe and the gang at a fair on Earth and getting in trouble after he buys the head of a [[MechaMooks BuCue]] containing sensitive military information.
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[[folder:Comicbook]]
* The first ''Comicbook/ThePunisher Summer Special'' opens with Frank visiting one, and coincidentally meeting an old Vietnam War acquaitance there. Said acquaitance turns out to be a villain of the story.
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[[folder:Film]]
* ''Film/BlackHawkDown'' features extensive sequences showing off that the entire city Mogadishu qualifies as an ArmsFair, despite being under the control of a ruthless warlord who will kill people trying to get the food supplies sent by various aid groups.
* In the PreTitlesSequence of ''Film/TomorrowNeverDies'', Film/JamesBond must infiltrate an Arms Fair to confirm its location and is observing the event. Over the objections of M, who wants Bond to finish his recon, British and Russian generals order a Tomahawk missile to take it the arms fair. As the missile is launched, Bond discovers an L-39 Albatros with [[MnogoNukes nuclear torpedoes]] on board at the fair.
** Which wouldn't have gone nuclear in the case of being hit by cruise missiles anyway. Since you need a very specific trigger and critical mass to arm and detonate a nuclear device, all it would have done was splash some nuclear material round. Not the best outcome, but not a Chernobyl-level event either.
* ''Film/LordOfWar'' has had several - all illegal. And with Russian-Military-themed women dancing on tanks.
** The one with the Russian-Military-themed women was implied to be legit, or as legit as you can get with an arms sale held by corrupt elements of the post-Soviet military hosted by a laissez-faire Middle Eastern state.
* The plot of ''DealOfTheCentury'' revolves around one.
* ''BabylonAD'' opens with Vin Diesel striding through a rain-drenched arms market in Eastern Europe to complain about a pistol he bought for only $20 that misfired on him.
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[[folder:Literature]]
* An example of the second variant [[PlayedForLaughs exaggerated for comic effect]] in Creator/SpikeMilligan's ''Literature/AdolfHitlerMyPartInHisDownfall'' "[[UnreliableNarrator memoirs]]":
-->''Any Sunday, down Petticoat Lane, you could find some of the lads selling lorries, jerrycans, bullets, webbing. “Git your luverly Anti-Aircraft Guns ‘ere.” It got so that Military Depots were shopping there for supplies. Often London-based regiments sent their Quarter Blokes out for ‘a gross of three-inch Mortars and a dozen bananas’. It was common knowledge that Caledonian Road Market was a German supply depot. The [[LittleKnownFacts true story]] behind Hess: he flew here for cut-price black-market underwear for the S.S., but on arrival he chickened out when Churchill told him the price, unconditional surrender.''
* In ''Literature/AnInstinctForWar'', ''At the Fair'' is set in one of the Association of the U.S. Army's trade shows.

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[[folder:Live Action TV]]
* ''Series/{{Airwolf}}'' had mini-ones.
* ''Series/{{Chuck}}'' has "Weap Con," of which [[ColonelBadass Casey]] was an enthusiastic attendant every year.
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[[folder:VideoGames]]
* ''[[VideoGame/GoldenEyeWii Goldeneye]]'' for the Wii features a level taking place at an arms fair.
[[/folder]]

[[folder:RealLife]]
* [=DSEi=], held every year in London.
* Similarly, small gun shows held in various places all over America.
* [[http://www.vbs.tv/watch/the-vice-guide-to-travel/the-gun-markets-of-pakistan The Gun Markets of Pakistan]] from ''Vice TV''
* After the collapse of the Soviet Union, just about anything military was up for sale from KGB badges to mothballed fighter planes.
* The SHOT show, probably the most publicized convention for high tech, brand new, and just plain interesting weaponry. It's difficult to get an invite without being in the industry, but even Youtube shooters with enough prominence (like Fate of Destinee) get admission.
* The gun markets in the [[http://en.wikipedia.org/wiki/Bakaara_Market Bakaara Market]] in [[WretchedHive Somalia]] during the civil war there. Gained infamy for being the place where you could buy an assault rifle for less than fifty dollars.
[[/folder]]

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