Hidden Weapons

There's a rocket launcher hidden somewhere in there, too.

Zu-Zana: But... that's a Compact Laser Deluxe!
Trin-E: Where were you hiding that?!
Jack: Ladies, you really don't wanna know.

— Doctor Who, "Bad Wolf"

Any weapon hidden in a creative place on a person's body. Not the same as a Victoria's Secret Compartment or Trouser Space. If the weapon is stored around the belt area, the trope you're looking for is Pants-Positive Safety. Perennial favourites are the Little Useless Gun. If there are lots of them hidden in clothing and strapped discreetly to the body, Extended Disarming may ensue. See also Hyperspace Arsenal.

Subtropes include:

• Arsenal Attire and its subtropes, for when weapons are incorporated into clothing rather than simply hidden within them.
• Chastity Dagger, if a woman carries one specifically to defend herself against rapists.
• Nothing Up My Sleeve, when weapons hidden under sleeves (especially if they're longer than the person's arm itself).
• Trenchcoat Warfare, if they are guns and are hidden beneath a long coat.

Not to be confused with Emergency Weapon, a videogame trope. Compare This Banana is Armed (weapons hidden in innocuous objects) and Shoe Phone (gadgets hidden/doubling as innocuous objects).

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Examples:

Anime & Manga

• In Bleach, during Yoruichi's fight with Soi Fon she shows that she has several throwing knives concealed in her pant leg, which she throws by kicking at her.
• In Brave10, every Ninja has at least a few kunai hidden up their sleeves, if not thirty. The most unlikely hidden weapons users are Rokuro and Nanakuma, who manage to produce suntetsu, combo whips/rope darts, and daggers from within and out of their stripperiffic outfits.
• In Inuyasha, Sango has a blade weapon concealed in her armguard, which comes in handy on numerous occasions when she is disarmed of her primary weapons.
• Many characters in Itsuwaribito use these a lot since being an itsuwaribito means being a person with the qualities of a thug, a thief, and a trickster, and hiding their weapons is a common tactic they use to get the upper hand in a fight. Utsuho's various explosives and Choza's poisoned hand claws are the two most prominent examples among the main cast.
• Saruhiko Fushimi in K carries over 20 throwing knives. The first time he visits Scepter 4 headquarters in a prequel novel, he turns over two of them when asked to disarm, and the Blue King, Reisi Munakata, enters at just that moment — this is the first time they meet — and tells the guard that he knows Saruhiko has more knives than that. He lets Saruhiko keep the ones in his shoes. Saruhiko ends up defecting to the Blue Clan, and becoming Reisi's most devoted Clansman.
• "Medicine Man" Koji Kaburagi from Kengan Ashura is a Combat Pragmatist of the highest order and shows ingenious use of concealed weapons during matches, aiding his subpar martial arts with things as a Brown Note device hidden in the longcoat he gave to his manager to hold, a coating of poison on his hands, a needle sheated in the folds of his flesh and even fake teeth with sharp edges he can use as bullets. He's so skilled at hiding his tricks that he was never found out by the organizers.
• Agnieszka from Kurobara Alice has a necklace that hides a tiny knife in its medallion. It was given to her as a gift. Which she uses to commit suicide.
• Kei Munakata from Medaka Box has a style based entirely on hidden weapons. Swords, hammers, knives, handguns, grenades, and even rocket launchers are always on his person and he can pull them out incredibly easily. Lord knows where he actually keeps all the damn things.
• Mihawk of One Piece wears a small knife as a necklace. Much later, Brook, who becomes a Straw Hat, carries a concealed blade in his cane, which is part of his fighting style.
• Ranma ½:
  • Hidden Weapons specialist Mousse keeps an innumerable amount of weapons stored on his person, whether simply tucked away inside his robes (ignoring such little things as bulk, size, and weight of the objects, which neither hinder him nor give themselves away), snapped into the soles of his shoes or even a length of cutting wire carefully rolled into the frames of his glasses. In one of the movies, on the beach, Mousse is without his trademark robe and still manages to pull it off, hiding massive chains within his swimsuit's wristbands.
  • Before Mousse there was Ryōga. He wore a massive number of bandanas which he could use as razor-sharp projectiles. His bamboo umbrella weighs several tons and has razor edges, and even his belt can be snapped straight and wielded like a sword. However, Ryōga's arsenal was passed over after being overshadowed by Mousse, and he mostly became a straight fist-fighter focusing on unusual strength and endurance.
• Otowa Hyoko, one of the minor villains from the last story arc of Rurouni Kenshin, has 13 assassination weapons hidden on his person at all times. He openly admits that he's not a warrior of any kind since his fights never last longer than it takes to throw a cloud of poison gas or shoot a dart into a person's spine. As he explains, some are seemingly normal weapons with a special gimmick, while others are Hidden in Plain Sight such as his "mantle".
• Snow White with the Red Hair:
  • Obi always has a knife visible at his belt, and after starting to work for Zen adds another dagger to his belt, but he is always carrying far more hidden knives than that and keeps several kunai up his sleeves for easy access.
  • Kiki carries a hidden knife in addition to her sword, even when she is at one point forced to dress according to her station as a noble and leave her sword behind.
• Emi Isuzu from Tenjho Tenge is a ninja-style character with dozens of throwing weapons hidden on her person. She's actually very overweight and controls her appearance with a body manipulation technique that hides her weapons in her scrunched up fat folds.
• Juuzou Suzuya in Tokyo Ghoul :Re has dozens of knives hidden in his prosthetic leg. This comes in handy when a mission requires him to go undercover as a victim of a human trafficking ring.
• In Trigun, Meryl has a bunch of Derringer pistols strapped to the underside of her cape so it looks like she wasn't wielding anything when she walks around with her cape around her shoulders. Also, Vash's boot-knife, which whirls into position between the upper and the sole. To say nothing of his machine gun arm...

Comic Books

• Bat Lash: Bartholomew Lash keeps a derringer hidden in a pocket watch case. On at least one occasion when an opponent gets the drop on him, he takes out the "watch" so he can note the exact time of his death, and shoots the gunman with the derringer.
• Dakota North: As one assassin discovers the hard way, Dakota carries a concealed knife when she's travelling by plane. It's got a non-metallic blade so she can sneak it through Metal Detector Checkpoints.
• Group of 7: A Most Secret Tale: When Bethune goes to kill the guards in front of the entrance to the lab at Vimy Hill, he produces a knife out of each of his sleeves.
• Lucky Luke: A one-shot gambler villain (parodying Louis de Funès) has to be disarmed several times in the span of a minute, because he kept pulling out increasingly smaller Derringer guns from various parts of his person, including one from his ear.
• Tex Willer: Kit Willer wears a scabbard containing a hidden knife on his back, right under his neck. It does save his life from an arrow.

Fan Works

• A Growing Affection has Shino teaching his artificial leg to hold a pair of kunai. And Hyouta Hyuga keeps a pair of holdout kunai tucked in the sleeve of his formal robes.
• Dragonfang in Master Potter of Kamar-Taj is able to turn invisible, allowing Harry to keep it a secret from the school before Percy Weasley literally stumbles upon it.
• In Prison Island Break, Shadow the Hedgehog consistently conceals prison shivs about his person. It's a mystery as to where he hides them all, only that whenever he is shaken down, several are removed, and when he gets back into his clothes, he still manages to come up with some more very shortly later — not knives, but items rapidly fashioned into sharp blades. At one point, he produces a shiv while entirely naked.
• In the Star Wars Rebels story A Sword to Pass, Ursa gives Tristan a hidden blade for his arm brace due to his father’s insistence that he doesn’t need a armed escort for a diplomatic mission. This blade comes in handy when they are attacked by a saboteur which Tristan uses the blade to stab them in the throat.

Films — Live-Action

• In Back to the Future Part III, Tannen attempts to assassinate Doc with a tiny Derringer pistol concealed under his hat after his primary guns are confiscated.
• Taken to extremes in Bowling for Columbine when a teenager pulls an outright ludicrous quantity of guns from his loose jeans, even a long-barrel shotgun, and lays them out on the table to put the fear of concealed weapons in the audience. Notably they cut out the scenes where they were stuffing more weapons in.
• In Braveheart, when pretending to hand himself over to the local English garrison, the hero hides a flail behind his back which he then pulls out to start his Roaring Rampage of Revenge.
• The climax of the Breaking Bad film El Camino revolves around this. When Jesse goes for a final confrontation with Neil Kandy and crew, the only weapon he openly carries is his grandfather's .22 caliber pistol, a laughably outdated and underpowered weapon, and as such Neil and his friends underestimate Jesse. Meanwhile, Jesse has a modern revolver hidden in his jacket pocket and is trained on Neil at all times. When they get into a Quick Draw duel, Jesse simply shoots Neil multiple times with the hidden gun rather than trying to beat him to the draw. Link to the scene.
• Death Race. When Jensen Ames makes it clear to Warden Hennessy that he's worked out that she was responsible for him being framed for his wife's murder, she dismisses her guards to their surprise for a Just Between You and Me conversation. However, she's shown to be gripping a Sawn-Off Shotgun on a swivel beneath her desk in case Jensen attacks her.
• Near the end of Die Hard, John McClain goes to confront the bad guys by feigning surrender and dropping his submachine gun, and then defeats them with his Beretta 92 pistol, which he had secured to his back with packing tape.
• In Django Unchained, Django and Schultz keep tiny Derringer pistols in their sleeves as backup guns and use them with devastating efficiency on a few occasions.
• Flag of Iron: The Rambler usually fights with his spear, but it turns out the spear's tip can shoot mini-darts and reload itself automatically after being spent.
• From the movie The Jewel of the Nile: "Jesse had a knife hidden in his boot." One wonders exactly how Jesse got it out when his hands were bound and he was hanging over a pit, mind you...
• Kiss Kiss Bang Bang: Perry keeps a small gun hidden under his ball sack.
  Perry: Homophobes never check there.
• Pacific Rim: Uprising: The rogue jaeger Obsidian Fury was designed to be outwardly unassuming (as unassuming as a jet-black, unregistered Humongous Mecha can be, anyways), only to surprise opponents with an arsenal of built-in weapons. In the movie, this includes retractable chainsaws, missile launchers, a signal jammer, and a Chest Blaster, with more identified in supplementary materials.
• Buster Keaton, in Our Hospitality, demonstrates an early example of this. While visiting his beloved's family, he reveals a large number of pistols concealed on his person.
• Pirates of the Caribbean: At World's End; When Barbossa and Elizabeth attempt to enter Sao Feng's bathhouse, they are ordered to leave all their weapons with other pirates to gain entry. Elizabeth removes a large number of hidden weapons, including a rather large blunderbuss that by all rights, shouldn't fit anywhere... comfortably. Barbossa looks behind her with a "how in the hell...?" expression.
• Rush Hour: In addition to his Beretta 92 service pistol, Carter keeps a Smith & Wesson model 36 backup gun concealed in an ankle holster, which plays a crucial role in his fight with The Dragon.
• In True Lies, Agent Faisil poses as a reporter to infiltrate the Crimson Jihad after they have taken over a building and kills several of them with an H&K P7 pistol hidden in his video camera.

Literature

• The 39 Clues: Irina Spasky, a former KGB agent with a knack for poisons, has retractable needles hidden in her fingernails.
• After the Revolution: Roland has a 20 mm grenade launcher hidden in his intestines and a retractable blade hidden in his right arm. Thanks to his Laser-Guided Amnesia he doesn't even remember he has them before halfway through an assassination attempt in his introductory chapter, and consciously avoids them due to being a Technical Pacifist.
• In Baccano!, Nice Holystone hides a small bomb in her empty eye socket beneath her eyepatch.
• In A Brother's Price every member of the Whistler family is heavily armed, though not all weapons are hidden. Jerin, as a boy, would not normally be armed, so people are quite surprised that he has a gun. And a dagger. And some lockpicks.
• In A Certain Magical Index, Kuroko Shirai keeps a number of weighted needles on garters just under the edge of her skirt, which are used for Weaponized Teleportation by teleporting them into people's clothes to pin them to the ground. She also has some larger bandoliers of needles that she sometimes digs out when subtlety has stopped being important.
• In the Codex Alera series, the small scribe Ehren routinely carries many daggers hidden on his person.
• There's a scene in Cryptonomicon where one of the characters spends two pages removing various weapons from holsters all over his body so he can lie down comfortably. Marginally justified in that he's a Marine headed into a combat zone, but pretty funny nonetheless, particularly since he starts the process by mentally scoffing at the pilots of his plane for being so paranoid as to carry sub-machineguns in the cockpit.
• Discworld:
  • The Assassin guild members are frequently described as having weapons concealed all over their bodies, to the extreme that, when someone menacing gets near, everyone starts revolving in their clothes.
  • In Pyramids, Pteppic tries carrying so many hidden weapons for his final exam that he ends up having to get rid of some so that he can actually walk to the exam in the first place.
• Dragaera: Vlad Taltos stashed an absurd number of weapons on his person when he still worked as an assassin. Once after waking up in captivity, he smugly notes that his captors changed his clothes entirely rather than try to figure out if they'd really found every last weapon while disarming him. He also tended to switch out his weapons weekly, to make it harder to magically trace any lost ones back to him, which could take an hour or more to get everything in place just so.
• In Durarara!!, Anri's demonic blade, Saika, is living inside her body and most Saika children and Kasane Kujiragi, one of the wielders of the true Saika who actually split the true Saika blade in half which the other half was now currently in Anri's possession are also hidden in their bodies, although their Saika blades are usually in different weapons than Anri's katana.
• Mirtai in The Elenium is shown to always be armed. Even at Ehlana's wedding, the narration specifies that she was "not visibly armed" when participating in the ceremony. Two of her weapons deserve special mention: the first is the spoon that she acquired after being Made a Slave in childhood, of which she sharpened the handle and used to ensure she wasn't overly mistreated. She keeps it in adulthood out of a mix of sentimental attachment and use as an unexpected desperation attack. The other is the pair of knife blades she planted into her boots so that only the tips stick out. Not lethal, but anyone on the receiving end of a Groin Attack will be even more disabled than usual.
• In The Gardella Vampire Chronicles, Victoria's hairdresser hides her stakes within her hairdos, for easy access.
• In later novels in the series, Honor Harrington has a holdout pulser^note a gun that fires tiny ultra-high-velocity darts built into her (artificial) arm. The barrel is the artificial hand's index finger, so firing it takes the top of her finger off.
• In Yulia Latynina's Inhuman, the Villain Protagonist hides a gun-like mechanism that fires a diamond bullet in his semi-prosthetic leg when going to assassinate an otherwise Crazy-Prepared Evil Prince (this being a distant future where projectile weapons are considered obsolete). It works.
• The Ninja Handbook details that one of the prerequisites for becoming a ninja is to make a flesh pocket to hold "Weapons, spare change, and occasionally a sandwich."
• Lazarus Long is known in-universe to be a master at this. Usually favoring full Scottish garb for the sheer area where one can hide all sorts of surprises, one scene in The Number of the Beast has him strip-searched almost to the point of a cavity search and remarking in his own head that he still had one holdout.
• Admiral Harper of Open Blue keeps a court sword in his walking stick. It also happens to be made of some pretty hard stuff, and so fares well as a staff. Flottenadmiral Nimitz from v2 - v4 keeps a dagger in the sole of his boot.
• One scene in Shogun has Blackthorne, prior to acting as a distraction in the plan to liberate Toranaga's ship, borrow a few knives and start stashing them under his belt, strapped to his arm and so on. The surrounding samurai seem vaguely appalled. Later he's visited by Friendly Enemy Rodriguez, who he orders searched, turning up knives and pistols hidden in his boots, sleeves, pockets, and even in the band on his hat.
• Nymeria Sand from A Song of Ice and Fire, who specializes in hidden blades. She is one of the Sand Snakes, a group of action girls from the region of Dorne, and is said to be able to conceal a dozen daggers on her person.
• Star Wars Legends: In Allegiance, Mara Jade keeps a hold-out blaster in a tiny holster in her boot. She keeps one up her left sleeve at almost all times.
• In Thieves' World, master thief Hanse, also called Shadowspawn, has at least three throwing knives hidden in various places in his clothing.
• Comes up a few times in the Vorkosigan Saga;
  • Miles' first bodyguard, Sergeant Bothari, is apparently psychologically incapable of not trying to sneak a weapon (or several) past the scanners and usually ends up getting strip-searched as a result, which does not improve his mood.
  • At another point, Elli Quinn is in the bodyguard role and surprises the Barrayaran Embassy's security staff with an Extended Disarming, producing several weapons more than they expected to find and chastening the guards who assumed that she was merely the Admiral's arm candy.
  • Lieutenant Koudelka's Sword Cane might also count as a hidden weapon, although it is actually provided to him more as psychological support than with the intent of him actually using it.
  • And finally, there's the VorFemme knife, a small concealable dagger carried by female members of the Vor Warrior caste, although two Vor ladies gripe that while it might make them better armed than the rest of the population, their male relatives are permitted to carry two swords, leaving the women notably outclassed.
• Very common in The Wheel of Time books. A number of characters carry knives in every place they can hide them. Perhaps the best example is when the Aiel force Mat to disarm, and watch him sigh and divest himself of 14 daggers hidden in various places on his (not overly clothed) body. Even the Aiel are impressed.
• The Witch of Knightcharm: Before a do-or-die test in which the protagonist Emily knows she'll be targeted by other students, she crafts several magic amulets but only displays one openly. The others she hides in the soles of her shoes so that her enemies don't see them and she can get off some surprise attacks.
• World of the Five Gods: Master Bosha carries at least five poisoned daggers hidden on his person, for his role as Lady Xarre's bodyguard and assassin.

Live-Action TV

• Blake's 7. Dayna (whose father was a weapons designer) has produced microgrenades from her boot ("Volcano") and a tooth ("Ultraworld"). On a couple of occasions, reality goes out the airlock when she produces a small wheeled remote-controlled bomb from nowhere at all.
• Doctor Who: In "Bad Wolf", Captain Jack Harkness pulls a gun out while completely naked. His assailants ask him where he got it from, to which he replies "You really don't want to know" before shooting them both.
• In the made-for-TV Kenny Rogers as The Gambler movies, Brady Hawks (Rogers) carries a double-barreled Derringer handgun in his vest.
• In Have Gun – Will Travel, Paladin carries a Derringer in his belt buckle. It comes in very useful in a number of episodes.
• Several characters on NCIS have these:
  • Ziva carries a backup gun in an ankle holster and a concealed throwing-knife in her belt. Gibbs knows about all of them, leading to an Extended Disarming before she joins the team in the field for the first time.
  • Gibbs himself carries a backup revolver in an ankle holster, and always has at least one knife on him - although his knife is more of a tool than a weapon.
  • In one episode Tony shows that his belt buckle contains a hidden knife.
• The Sopranos: In "I Dream of Jeannie Cusamano", Tony hides a gun in a fish; this is because he's ambushing the guy at the docks.
• Stargate Atlantis: In "The Hive", when the heroes have been captured by the Wraith they need to activate a door panel located across the room from their prison cell. Ronan produces a dozen throwing knives after he's already been strip-searched by the enemy.
  John: How many of those do you have?
  Ronan: How many do you need?
• Twin Peaks: When Agent Cooper and Sheriff Truman are preparing to go to One-Eyed Jack's after being asked to ransom back Audrey, it's revealed that the group currently running the place is planning to kill Cooper. The blonde-haired guy has a hidden switchblade fixed to his wrist, almost exactly like the ones used in Assassin's Creed.
• In Yancy Derringer, Yancy's weapons of choice are four-barrel Sharps pepperbox derringer handguns carried concealed: one held by a clamp inside the top of his hat, one in his vest's left pocket under his jacket and one up his jacket's left sleeve in a wrist holster.
• The Walking Dead (2010): Magna hides a small knife in her belt buckle. It turns out that she also has a second on her somewhere. Neither is discovered when she is patted down.

Pinballs

• In Capcom's unreleased Kingpin, Trixie, the Moll of the mob boss, has a small pistol holstered to her leg beneath her dress.

Tabletop Games

• Blood Bowl players with the "Stab" and "Weeping Dagger" Extraordinary skills (such as Dark Elf Assassins and Skaven Gutter Runners respectively) are able to sneak knives of various types onto the pitch to use during a game. Unlike the bombs, chainsaws, and steamrollers used as secret weapons by other players, these knives are easy to conceal from the gaze of the referee so their use will not get the player sent off for using them during the game.
• Forgotten Realms: A wizard detective carries a pair of sword scabbards — but there are daggers inside, and the leftover space is used to stash two wands per scabbard.
• GURPS: GURPS: Ultratech has the Finger Laser, it's fitted beneath the first layer of skin at the end of the finger. And to really shock people you can install a Ripsnake, which comes out of your mouth; the game advises using it while kissing someone for maximum effect. Cyberenhancements being available generally allow an enterprising individual to do a full array of these tricks.
• Necromunda: Skinblades^note known simply as concealed blades during 1st and 2nd Edition are small knives that can be concealed beneath a ganger's skin. Hidden from all but the most intensive of searches, a character with such a blade is able to use it to mount an escape attempt if they are captured by an opposing gang.
• Shadowrun: One of the reasons that the Armored Longcoat is popular among 'Runners (besides the weather) is that it's very helpful for concealing weapons. You can even install special holsters up the sleeves that will drop a pistol straight into your hand if you perform a specific hand motion. There are also a variety of cybernware implants that function as hidden weapons, primarily retractable blades as well as guns, though the latter generally requires that you have a cybernetic limb in order to install it. There are other, more exotic weapons that can be installed, too. The only limits are how much nuyen you can spend and how much essence you're willing to lose.
• Warhammer Fantasy Battle: Witch Hunters typically carry a great variety of weapons hidden on their persons, ranging from extra guns and knives to weaponry incorporated into their clothing, pipes modified to act as blowdarts, boxes of toxic powders and collapsible, wrist-mounted bows.

Video Games

• Many characters in the Assassin's Creed series use one or two hidden blades, a bracer on the wrist with a retractable blade used to discreetly stab targets. Starting with the second game, these hidden blades become increasingly elaborate, incorporating a dart gun, a pistol, blades designed to inject poison, and a hook-blade used for both climbing and combat.
• In Fallout: New Vegas, the player can hide certain weapons on their person when going into places where weapons are confiscated, mainly the three casinos on the Strip. These holdout weapons are limited to small weapons like smaller pistols, knives, knuckles, and certain small grenades. With 50 Sneak skill, they can hide weapons that are on the "improved holdout weapons" list, which includes full-sized pistols, larger bombs, land mines, and even certain types of Power Fist.
• Ryuji Yamazaki, character of Fatal Fury and The King of Fighters series fights using a hidden pocketknife in his pocket.
• Played for Laughs in Lufia II: Rise of the Sinistrals and its remake Lufia: Curse of the Sinistrals. Maxim and Selan conceal their weapons under their wedding attire because they feel weird going anywhere without their weapons. It pays off when a monster attack happens in the middle of the ceremony.
• A Running Gag in the Sam & Max series, with Max and his Lugers. His example is especially notable as Max doesn't wear clothes, and yet is seemingly able to materialize a new Luger at will. Max himself simply answers this question with "none of your business", and when Sam is briefly in control of Max's body, he apparently discovers where he keeps them, but doesn't tell the audience.

Web Animation

• RWBY:
  • Mercury Black appears to have guns hidden in his boots. In actuality, it's his modified prosthetics concealed under his pants and boots.
  • Could also apply to Yang, her gauntlets look just like metal bracelets in compact mode.

Webcomics

• The Girl Genius paper-dolls for Gil feature, according to the tailor-bot, "a panoply of hidden weapons for vicious backstabbing". Phil and Kaja, of course, say they don't see any.
• Acatha of Royal Blue keeps her dagger into a band on her thigh, hidden by her skirt.
• In an early strip of Schlock Mercenary, when the team is 'disarmed' on the way to collect payment, Schlock is stated to be unable to talk due to a mouthful of concealed weapons. Later, Tagon agrees to let Tailor make him some new clothes when told he will be able to conceal 6 to 10 additional weapons.
• Tower of God: Yeongsook's many rings are actually fire wands, not mere accessories.

Western Animation

• Amphibia: Sasha reveals in “The Dinner” that she carries numerous hidden weapons, including at least half a dozen daggers in her boot alone. Lampshaded by Grime, who asks incredulously how she can even walk.
• Olivia, a one-time character on Family Guy, and a Distaff Counterpart to Stewie, has a knife blade hidden in one of her shoes that she uses during a fight with him. Stewie himself has a butterfly knife strapped to his ankle.
• Valmont from Jackie Chan Adventures carries around a black cane. It's revealed in the Season 1 finale that it actually conceals some type of energy blade, which he uses to slice his way out of a prison cell. The cane then essentially vanishes after its big moment.
• Parodied in an episode of The Simpsons, in the episode "Simpsons Tall Tales", where a riverboat full of gamblers are pulling out derringers from various parts of their persons, including one guy who pulls out a derringer and then removes a SMALLER derringer from the gun barrel.
• A necessity for Jedi in Star Wars Rebels, as they live in the time of the Empire and openly carrying a lightsaber is certain death. Ezra built his lightsaber to look like a blaster, while Kanan keeps his in a disassembled state to hide its true function.

Real Life

• In this demonstration video, an unassumingly dressed woman produces three guns, two spare magazines, and a spring-loaded knife from her person.
• Shoulder holsters are designed with this in mind. The firearm is carried under the arm, in the natural void between the arm and the obliques. With a properly-fitting jacket it is damned near invisible and very quickly and readily accessible, and a lot safer (and a lot more classy) than just shoving the thing down the front or rear of your pants.
• Q-Ships. In World War I, German U-boats were seriously damaging Britain's ability to ship in food and supplies. One solution was to outfit merchant ships with guns hidden behind panels. A U-boat would surface and fire a warning shot, a "panic party" would fake abandoning ship, the U-boat would get closer to board, then the panels would be released and the guns would open fire.

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