When Justin Hammer (Sam Rockwell) is asked by Lt. Col. Rhodes (Don Cheadle) to weaponize the Mark II Iron Man suit, he presents several weapons for them. One of the main weapons Hammer displays is the M134 Minigun. Hammer says that the boys in uniform refer to it as "Uncle Gazpacho" or "Puff the Magic Dragon" when showing it to Rhodes. Even though he correctly identifies it as a 7.62mm, Puff the Magic Dragon was actually the nickname for AC-47 gunships and was never used to refer to Miniguns. He is also seen picking it up with ease even though the gun weighs more than 100 lbs with all the parts, but the barrel unit is light enough to pick up. The "War Machine" has the M134 mounted on its right shoulder.
The FN F2000 Tactical assault rifle is also mounted on War Machine. Referred to as the "FN 2000" by Hammer (Sam Rockwell) when seen showing it off to Rhodes.
The Milkor MGL is also one of the weapons Hammer presents to Rhodes. While it is not readily evident where it is mounted on War Machine, it is seen mounted on the right arm of Hammer's Army drone.
SHIELD Agent Natasha Romanoff (Scarlett Johansson) takes a H&K USP Compact off a Hammer guard which she wields along with a Walther PPK/S during the raid on Hammer Industries.
Carried by US Air Force Security Forces airmen with flashlights, foregrips, and Aimpoint sights, most notably when Lieutenant Colonel Rhodes arrives at the base half-way through the film.
Error creating thumbnail: File missingColt M4A1 Carbine with M68 Aimpoint reflex optic and Knight's Armament RAS railed handguard and vertical forward grip - 5.56x45mmError creating thumbnail: File missingAn Air Force security member is seen on guard in front of a B2 Spirit bomber armed with an M4A1 Carbine.Error creating thumbnail: File missingSeveral other Air Force personnel are seen armed with M4A1 Carbines as they look at the Mark I Iron Man suit that Colonel Rhodes took from Tony Stark.
Walther PPK/S
S.H.I.E.L.D. Agent Natasha Romanoff (Scarlett Johansson) carries a Walther PPK/S .380acp pistol in a Blackhawk Serpa Holster.
In addition to the Milkor MGL, the Army version of the Hammer drone is seen armed with a large single barrel cannon, which according to director Jon Favreau's audio commentary, is based off the 25mm M242 Bushmaster chaingun.
The Air Force Drone is armed with wrist mounted cannons and a shoulder mounted machine gun.
Error creating thumbnail: File missingThe Air Force Drone fires it's wrist mounted cannons at a Stark Expo sign that got in it's way while it was flying after Iron Man (Seems rather odd that a highly-technological drone designed for war would make the mistake of crashing into an obstacle that it could have clearly seen ahead of time and plotted a more appropriate course to avoid crashing into said obstacle, doesn't it?).Error creating thumbnail: File missingThe other Air Force Drones are seen firing their shoulder mounted cannons at Iron Man during the aerial chase in the film's climax.
