Battle: Los Angeles is an upcoming 2011 science fiction war film starring Aaron Eckhart as a Marine staff sergeant who leads a platoon in defending the city of Los Angeles from an alien invasion and to save a group of survivors before a massive attack begins over the city.
NOTE: All images are screencaps taken from the film's first trailer unless otherwise noted
The following weapons were used in the film Battle: Los Angeles:
The Colt M4A1 carbine is the main weapons utilized by the U.S. military in the film's trailer. The M4's appear to be fitted with ACOG scopes, RIS foregrips, Surefire Universal weaponlights, and most interestingly, AN/PEQ-15 laser designators; an improved, compact version of the AN/PEQ-2 system first employed in the early 2000's.
M16A4
The M16A4 rifle MWS (Modular Weapons System) with RAS Rail System is utilized by U.S. Marines.
Colt M4A1 with M203 Grenade Launcher
M203 grenade launcher 40mm grenade launcher is visible on various M4A1 carbines used by U.S. Marines.
FN M249 SAW
The M249 SAW used by the US Marines in the film's trailer, fitted with an ACOG scope.
M240D Machine Gun
The mounted version of M240 machine guns machine gun is visible on the ramp of at least one of the U.S.M.C. CH-46 Sea Knights that appears in a 4 seconds teaser released in July 2010.
Also, the coaxial-mounted version M240C is utilized by M1A2 Abrams MBT.