Raza's Ten Rings fighters carry Heckler & Koch G36K assault rifles, most fitted with G36C-style carry handles. In the film, Tony Stark (Robert Downey Jr.) learns that Obadiah Stane (Jeff Bridges) has been secretly selling Stark Industries weapons behind his back to Raza's men, making them better armed than any of the other jihadist factions in Afghanistan and Pakistan. The various assault weapons used by Raza's men, including the H&Ks, are therefore supposed to be Stark Industries products. It is also possible that in the Iron Man universe, Stark Industries obtained a license from Heckler & Koch to produce G36 and UMP-series weapons in the U.S. Or that Stark industries has bought Heckler & Koch.
Error creating thumbnail: File missingHeckler & Koch G36K - 5.56x45mm.Error creating thumbnail: File missingHeckler & Koch G36K with Rail top - 5.56mmError creating thumbnail: File missingA Ten Rings gunman is seen behind Stark when he is unmasked, armed with a G36K.Error creating thumbnail: File missingA Ten Rings fighter next to Raza armed with a G36K fitted with an EOtech sight, foregrip, and laser.Error creating thumbnail: File missingTen Rings fighter fires a G36K at the first prototype Iron Man. His G36K is outfitted with the current SOPMOD rig, a tandem sight mount with an AN/PVS-14 NVS mounted behind an ACOG (or any other red dot) Scope. This tandem double scope system allows the shooter to use red dot aiming with night vision capability.Error creating thumbnail: File missingA Ten Rings fighter readies his G36K for the approaching prototype Iron Man suit. This rifle is fitted with a high power scope.Error creating thumbnail: File missingA Ten Rings fighter fires a G36K fitted with EOtech sight, foregrip, and laser attachment. This comparison shows how the same shot is shown twice, simply reversing the shot to make it seem like a different angle.
Heckler & Koch G36C
Several of Raza's men are also armed with the compact version of the G36, the Heckler & Koch G36C. The G36's are also outfitted with many accessories to disguise their origins. During the escape from the Ten Rings' camp, Yinsen (Shaun Toub) grabs a G36C dropped by one of the fighters and runs towards Raza's men firing wildly, trying to divert attention from Stark until the suit is powered up and he can use it to fight his way out.
Raza (Faran Tahir) is seen with a H&K G36K fitted with a Heckler & Koch AG36 grenade launcher, which he fires at Stark in the prototype Iron Man armor, but misses and is knocked out by Stark's missile instead.
Several of Raza's men are armed with the .45-caliber version of the Heckler & Koch UMP with tactical outfitting. They can be recognized as such because the magazines are not equipped with transparent material.
USAF Airmen stationed in Afghanistan are seen armed with M4A1 carbines. They are also used by airport security when Tony Stark returns to the United States. The M4A1's in the movie are eqiupped with Insight Technologies ISM-V scopes; These scopes have built-in laser aiming modules and night-vision, thus eliminating the need for anything but the handgrip.
-This is how many troopers fire their weapons. I've seen plenty of deployed troops ignoring their VFG's as well.
M26 Modular Accessory Shotgun System
Held by one of Raza's men is an M4A1 with a Magpul Buttstock and an M26 Modular Acessory Shotgun System (MASS) fitted under the barrel. While the carbine's grip appear to be removed, close inspection reveals his sleeve is in the way.
The image in question is a heavily edited clip that is included on the U.S. version of the trailer. The M4 with M26 is put in to replace another shot of the weapon that is pointed at tony starks head. The MPAA doesn't allow trailers to show any weapons to pointed at a person, even if thats how the final cut shows it. The same thing happened in the trailer for Indiana Jones and The Kingdom of the Crystal Skull
Both Ten Rings fighters and USAF Airmen in Afghanistan can be seen using the Browning M2HB 50-caliber machine gun. The Ten Rings fighters place the machine guns in their camp, with the USAF Airmen have them mounted on top of their Humvees.
One of the Ten Rings members attempts to shoot Stark in the head with a Heckler & Koch USP when his arm gets stuck in the wall, but the round deflects off the armor and hits him instead. Abu Bakaar (Sayed Badreya), the leader of the Ten Rings guerrillas is also seen with a USP at his hip in a holster.
The SHIELD agents escorting Pepper Potts (Gwyneth Paltrow) to arrest Obadiah Stane (Jeff Bridges) are armed with Glock 17 pistols, which they fire at Stane, now "Iron Monger", but prove useless and they are easily dispatched.
