Manufacturer: Model: Country: Calibre Fire modes: Rate of fire Range
Bushmaster ACR United States 5.56x45mm NATO Semi- / Fully automatic 650 rounds/min Effective: 300m
Ingame
Game modes
Modern Warfare 2 is the first game the ACR appears in.
Model formally known as Magpul Masada.
It's military name is the Remington ACR.
Abbreviated term of Adaptive Combat Rifle.
Magazine: 30 rounds.
The ACR is the most accurate assault rifle in the game, and has only visual recoil. An entire magazine can hit roughly the exact same area without shots deviating.
The ACR is the most common default weapon when playing as Gary 'Roach' Sanderson. This may suggest it is Sanderson's weapon of choice.
Campaign Special Ops Multiplayer
Screenshots
Video
In this 8 minute clip of Discovery Channel's Future Weapons, Mack tests out the Bushmaster ACR.
In the HD video below, observe as YouTuber DrSalvadorz earns the most prestigious killstreak with his ACR: the Tactical Nuke.
Weapons 
Campaign
