G.I. Joe: The Rise of Cobra

The weapons seen in this upcoming movie are:

FN FiveseveN

Used by SnakeEyes.

FN Five-SeveN (Original Model), 5.7x28mm. This model is no longer produced.

Used by Heavy Duty.

GE M134 - 7.62x51mm.

Used by The Baroness in the trailer.

H&K MP7A1 4.6x30mm with Zeiss Z-Point sight. This MP7 shown in SMG configuration.

Held by Duke in the trailer

Yep, it is a '416

Heckler & Koch HK416 with 10 inch barrel, 5.56x45mm NATO

in Tactical configuration

Fabrique Nationale F2000 5.56x45mm NATO

Steyr AUG A3 5.56mm with Surefire M900 weaponlight foregrip and EOTech red dot sight