Deus Ex: Human Revolution is a 2011 video game developed by Eidos Interactive and published by Square-Enix. The third game in the Deus Ex series, it is a prequel to the original, and is set in the year 2027 as controversial "human augmentation" technology begins to become widely available. Players take on the role of former SWAT officer turned private security guard Adam Jensen, who is horribly maimed during an attack on his employers, augmentation company Sarif Industries, by mysterious terrorists. Saved from death and rebuilt with his company's technology, he begins to search for answers as to who attacked that night and why.
The following weapons can be seen in the game Deus Ex: Human Revolution:
The game features a grid inventory into which any number of weapons which will physically fit can be placed, with a quick-access wheel (console) or bar (PC) allowing selection between weapons. Many of the game's weapons are clearly fictional, including a variety of energy guns, and others are "futurised" modern weapons or hybrid frankenguns. Totally real weapons are limited to being shown incidentally; in photographs, on book covers and suchlike.
The game features a weapon modification system where guns can have generic upgrades for magazine size, reload speed, fire rate and damage added, as well as up to three special upgrades such as suppressors or laser aiming units. The latter type tend to physically alter the weapon model, while the former typically do not.
Usable Weapons
Huntsman Silverback
The Huntsman Silverback is a break-action double barreled shotgun that appears only in the "Augmented" (Limited) Edition of Deus Ex: Human Revolution. The shotgun is automatically obtained after the second level, and is also available for purchase in case Jensen drops or sells it.
The Huntsman Silverback offers devastating damage at close range. Both barrels can be fired simultaneously. This weapon cannot be modified.
AIG Asymmetric Warrior ASW338LM
The Longsword Whisperhead SERSR (Suppressed Extreme Range Sniper Rifle) is a bolt-action sniper rifle with a non-removable sound suppressor. Fires a fictional ".416 caliber Ultrasonic" round. It is available only in the "Augmented" edition of the game. The weapon seems to be based on the AIG Asymmetric Warrior ASW338LM, but lacks the folding stock and has what appears to be a gas tube under the barrel; rather an odd feature for a bolt-action weapon. In the game's fiction it is manufactured by a company called Steiner-Bisley.
The rifle has an interesting glitch common to all scoped weapons which can mount a laser sight; if it is fitted with one, the impact point of shots will no longer match the centre of the crosshairs in the scope, instead hitting slightly below it. This is because when a laser sight is fitted to a weapon in Human Revolution, the weapon actually fires shots out of the laser rather than out of the barrel. Oddly, this only happens in first-person mode; when firing from cover and using the scope a weapon with a laser will behave normally.
SRM Arms Model 1208
The Widowmaker TX is a 12-gauge semi-automatic combat shotgun. It is manufactured by Military Arms of Ostrava (MAO) - a fictional firearms manufacturer company in the Czech Republic. It appears to be based on the SRM Arms Model 1208 semi-automatic shotgun with a folding foregrip added. It should be noted that this weapon was also added to the game Team Fortress 2 as part of an update intended to promote the Deus Ex launch.
Unusable Weapons
AR-15 Variant
In one of the endings, an AR-15-type weapon is seen with a muzzle cup for launching less-than-lethal grenades. The exact variant of both the rifle and grenade are (currently) unknown.
Browning M2
A Browning M2 is seen mounted on a United Nations M113 APC in one of the game's ending.
C4 Charge
During a mission, Jensen has to infiltrate a Belltower dock (or kill his way inside - depending on the player's play-style) and plant a C4 charge in order to create a diversion and be able to sneak on a boat unnoticed.
Colt M4A1
What looks like an M4A1 Carbine can be seen on various photos scattered throughout the game.
Colt M16A1
What looks like an M16A1 is seen in one of the game's endings.
Colt M16A2
An M16A2 can be seen held by a soldier in one of the game's endings.
A revolver is seen on a sign at the Detroit City Police HQ. The revolver closely resembles a Smith & Wesson Model 27, although it is drawn with a different front sight.