Assault Rifle (RE3)

The M4 Carbine is a shortened collapsible-buttstock variant of the M16 Assault Rifle family. It is chambered for the 5.56x45mm NATO round, and is the standard assault rifle for the US Army, U.S.S., and the U.B.C.S.. It is also used by S.T.A.R.S. (as seen in the 2nd movie) various police forces and many foreign military forces around the world along with the M16 itself. In most of its appearances in Resident Evil, the M4A1 either fires in semi-automatic or fully automatic mode.

Resident Evil 3: Nemesis
This weapon was carried by Carlos Oliveira during the Raccoon City Destruction Incident. Apparently, Carlos brought absolutely no spare ammunition for his assault rifle, which cannot be reloaded (unless playing on Easy difficulty, where a spare magazine can be found in the item box). On the Easy Difficulty setting, Jill can also use this rifle from the start (with three spare magazines). On hard mode, Jill can also obtain this weapon by defeating Nemesis-T Type in his second form near the chapel (that will be seventh unnecessary fight with Nemesis during the game), if she kills him every time he will appear before in the game. That will work, when game is completing the first time only. During all further game completions, Nemesis will drop Infinite Bullets as reward.

While the in-game model has an Optical Device (which appears to be an Aimpoint red dot sight or a Trijicon ACOG scope), a vertical foregrip, laser sight, and bipod, the FMV cutscenes reflect none of these attachments.

Outbreak
A civilian version of the M4 appeared in both Outbreak games. It lacks any sort of attachments and is found in the final scenarios of each game. It inflicts 200 damage per shot with a 30 round mag (6000). It is not recommended to give this weapon to the AI, as they tend to waste 10-20 rounds to kill a mere enemy (much like Kevin Ryman with his .45 auto). A trigger-disciplined player can kill a zombie with 4-8 well placed shots (may depend on difficulty).

Degeneration
In Resident Evil: Degeneration, Greg Glenn, U.S. Marines, and Leon also used M4s. Greg's had his carrying handle removed and had a small rear sight in its place, while some the Marines had a red dot/ACOG sight attachment. Two of the Marines had M203 Grenade Launchers, one of which Leon commandeers. The M4 used by Greg has a shorter barrel, most likely the M4A1 CQBR varient.

Operation Raccoon City
In Operation Raccoon City, it is known as the Assault Rifle, and has been seen being used by members of the Umbrella Security Service, Government Spec Ops, and even Leon S. Kennedy in early gameplay footage and screenshots. The variant in-game features an Aimpoint reflex sight in place of the carrying handle. The in-game verions of the M4 also has a unique stock, rather than the standard telescoping stock, and also features an un-curved magazine. The lense of the mounted ACOG scope appears to be tinted green.

Live-Action Films
Members of the STARS can be seen with M4 Assault Rifles, best seen at the Mostly Colt store when LJ first enters and he gets a few pointed in his face in movie 2. Umbrella soldiers in movie 4 were also seen with this weapon while fighting the clones of Alice in the Tokyo facility. One of them utilizes a rifle while using the body of a soldier as a human shield.

Trivia

 * An infinite version of the M4 can be purchased through the mercenaries minigame of Resident Evil 3.
 * Jill starts the game with an M4A1 In Resident Evil 3: Nemesis, however only in easy mode.


 * In Resident Evil games, the M4 is most commonly depicted with a Picantinny Rail and an optical sight in place of the carrying handle. (Though in Raccoon City art, Spectre is depicted holding an M4 with the handle.)
 * As shown in recent gameplay; some Spec Ops are equipped with M4's lacking Aimpoint sights.
 * In the older games, many characters (even those with experience like Carlos or Mark Wilkins) will fire this weapon from the waist, despite it being a very ineffective way to use the gun.
 * In real-life, the M4 can fire in 3 round burst and the M4A1 can fire in full automatic.