1 definition by TheRhodan

ACR stands for Adaptive Combat Rifle, it is a Assault Rifle which is produced by Bushmaster and Remington Arms.

It can be compared with the FN-Scar, and the H&K XM8.

It is also the weapon with the lowest recoil and highest damage in Modern Warfare 2.
Player A:
Dude you just pwned the other Team! Can you tell me how to do that?

Player B:
ACR for teh win! Lulz
by TheRhodan October 12, 2010
Get the ACR mug.