28 Weeks Later is the 2007 sequel to 28 Days Later. The sequel follows a brother and a sister who make their way to a London supposedly free of the virus outbreak from the first film and now under the occupation of NATO and the US Army. The film's cast included Rose Byrne, Jeremy Renner, and Robert Carlyle.
The following weapons were used in the film 28 Weeks Later:
The Beretta 92FS (standing in for the military-issue M9) is the standard sidearm for the US troops in the movie. Major Scarlet (Rose Byrne) uses one notably to kill an infected Captain, then it is seen in her M12 holster for the remainder of the movie.
A Heckler & Koch MP5A5 equipped with an EOTech sight and double magazines is seen being used by Flynn (Harold Perrineau). He jokingly pulls it on Doyle when he scares him and later when the kids confront him near the end of the movie.
One of the snipers in an early scene can be briefly seen with a Barrett M107/M82 sniper rifle. It later makes small appearances in the scene where the soldiers snipe the infected from the rooftops.
The M4A1 carbine is the standard weapon of US soldiers deployed to the UK and is seen in the hands of literally hundreds of troops throughout the movie. Sgt. Doyle (Jeremy Renner) notably wields a highly customized version after he leaves the roof. Just before his sacrifice, he leaves the weapon for Major Scarlet (Rose Byrne), who later uses the night vision to help the kids and herself navigate through the pitch-black subway tunnels. Tammy (Imogen Poots) also uses the weapon at the film’s climax to kill her infected father. She then drops the weapon and leaves it on the subway floor. Doyle's rifle has an EOTech sight, UTG foldable foregrip, CAA CBS CAR telescoping stock, PVS-14 NVG sight, and no front post sight. A lot of the non-firing M4s are Classic Army airsoft replicas. You can see the white Armalite trademarks on the side and some shots even the winding wheels on the high cap magazines.
Doyle (Jeremy Renner) has his M4A1 fitted with an EOTech sight along with the PVS-14 NVG sight. Note the lack of a holographic reticule. When he is seen taking down the infected, the view through the scope makes it appear that his shots are off from the center. Similar to the "faulty scope" in Saving Private Ryan, this was an intentional decision by the filmmakers in order to see the bullet hits more clearly.
Mk 12 SPR is used by a Delta sniper to kill two survivors, wound Scarlet, and finally shoot at Andy. The sniper was seen firing in semi and full-automatic.
The US Army's bolt action Remington Model 700P LTR is seen briefly in the hands of a rooftop sniper during the beginning of the film and the sniper barrage during the outbreak.
The Browning M2HB heavy machine gun can be seen in both fixed position mounts and atop vehicles in 28 Weeks Later. It is used on screen briefly when the infected break out of the buildings and are fired upon with the Browning M2. Also, when the train carrying the returning refugees pulls into the rail station a fortified position sporting an M2HB is visible through the window.
Used by a US Army sweeper team, this unknown flamethrower is used to burn the dead infected. I could only get one good picture of it, though. Note the other US Army sweeper using an M4 with Ergo rail covers, vertical grip, optics, and ranger plates. In real life, the US Army got rid of its flamethrowers by the late 1970s.
