ACR

The ACR is an Assault Rifle in Call of Duty: Modern Warfare 2.

Single Player
The ACR is the main assault rifle used by the player during the Task Force 141 campaign missions, and is used by other TF141 members during some missions. It is first available to the player as an optional weapon in The Pit in the mission S.S.D.D.. It is also used in the mission "Cliffhanger", with a Red Dot Sight, Silencer, Heartbeat Sensor, and a unique arctic camouflage that is mostly comprised of natural ice and snow. An ACR Grenadier version with ACOG Scope and Grenade Launcher is used in "Takedown", while another version featuring Holographic Sight and Grenade Launcher is used in "Loose Ends". A version with a unique matte black finish (though it may initially resemble the standard gray-black finish) and the same attachments as found in "Cliffhanger" can also be found in the mission "Just Like Old Times".

Multiplayer
In multiplayer, the ACR is unlocked at Level 48. The ACR is similar to the M4A1 but sacrifices rate of fire for having virtually no recoil. It carries 30 rounds in its magazine, deals 30-20 damage per shot, and has a fire rate of 750 RPM. Although the ACR bounces when firing, this recoil is purely visual and the weapon has near-zero actual recoil as it resets perfectly before the next shot, making it ideal for long range combat. Its moderately low damage per second makes it somewhat weak in close quarters combat compared to other automatic weapons.

A versatile weapon, most Perks and Attachments work well with the ACR, especially Stopping Power which helps make up for its low damage per round. With Stopping Power, it takes 4 shots to kill at long range (versus 5 without the perk), 3 shots at close range (versus 4) and 2 headshots at close range (versus 3 without the perk). The ACR is very useful at long ranges so therefore it excels in medium-large to large maps with long lines of sight such as Wasteland, Afghan, Highrise, Derail, Estate, Bailout, and Fuel. Its lack of any recoil means that it is simple and very easy to use with the ACOG and Thermal Scopes, and wasting ammo due to missed shots is usually not an issue. The ACR tends to chew through ammo much like the M4A1, but its accuracy makes missing shots a lesser issue. Also, the ACR is one of the most effective weapons in the game for reload canceling; the player does not even need to wait until the magazine is fully inserted into the rifle before ammo is replenished.

In terms of damage output per second, the ACR's moderately low damage and moderate rate of fire make it one of the least powerful assault rifles in the game. Still, its effectively non-existent recoil ensures all properly aimed shots are on target, allowing for more expedient kills. Because of these features, it is one of the most commonly used assault rifles in the game.

Weapon Attachments

 * Grenade Launcher
 * Red Dot Sight
 * Silencer
 * ACOG Scope
 * FMJ
 * Shotgun
 * Holographic Sight
 * Heartbeat Sensor
 * Thermal Scope
 * Extended Mags
 * Akimbo (through mods)

Trivia

 * On Infinity Ward's website, the ACR was voted the favorite assault rifle in Call of Duty: Modern Warfare 2.
 * The serial number of the ACR in Modern Warfare 2 0091436. 91436 is the ZIP code for Encino, CA, where Infinity Ward is located.
 * When this weapon has a Thermal Scope attached, the pick-up text will read "ACR Thermal Sight" instead of "ACR Thermal Scope".
 * The ACR appears larger than any other assault rifle when seen from 3rd Person.
 * The ACR, along with the M4A1, has the largest ammo capacity of any assault rifle (630).
 * The ACR seems to be a preferred weapon of Task Force 141 operatives Ghost and Roach
 * A special ACR is available with three attachments and max ammo of 1260 rounds. They are located in "Cliffhanger&quot; and &quot;Just Like Old Times". These ACRs are equipped with Silencers, Heartbeat Sensors and Red Dot Sights.
 * In Create-A-Class, the ACR can be seen in a black finish, but if no camouflage is added, it is gray on its camouflage-able parts (see the gallery above). However, in "Just Like Old Times", the player can find black ACRs in the steam room where Shadow Company ambushes the player.
 * On the side of the ACR is written "CAL 5.56 EURO". This is best visible with Arctic Camouflage, but can be seen with any camouflage equipped.
 * In Singleplayer mode, the ACR has a Holographic Sight and Digital Camouflage as seen in "Loose Ends". This ACR has zoom in level of an ACOG.
 * In Just Like Old Times, it is possible, but rare, to get 1890 ammo for the ACR. It can be obtained by getting a normal ACR with max ammo of 630 and a black one with 3 attachments with max ammo of 1260.
 * In Cliffhanger, when you enter the hangar with the ACR, the caked snow and ice melts off of it, revealing painted Arctic Camouflage.
 * Due to the ACR's almost non-existent recoil, and the fact that it can kill an enemy across the map while firing full auto, it is simultaneously one of the most liked and disliked guns by the online community.

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