I prefer the cm901 over the scar, but my favorite AR is the ACR.

I'd say scar. If you ask me the ACR is superior to both of them.

i like the scar l more but i like the m4 and acr even more...

I think the Scar is better, it hardly has any recoil. The CM901 kicks around like a fish out of water.

Between the two I'd favor the SCAR for its lack of recoil and faster rate of fire. The only advantage the CM901 brings to the table is a 4-hit kill at range, but even then the SCAR would be easier to use thanks to the aforementioned advantages.

But as a pragmatist, the real question on everyone's mind should be why bother with either of these when the ACR is available. Its just as powerful per hit as the CM901, has a faster fire rate than it too, and even less recoil than the SCAR. Someone in charge of balancing these weapons derped pretty hard.

I like the scar better. CM has way to much recoil for me.

CM901 and SCAR are both awesome but the CM901 has a lot of recoil. If you shoot people at a long distance a lot SCAR would be the way to go. The only other way to take some of the recoil off is to put on a silencer, I find this helps a lot with any gun that has a lot of recoil. The ACR is the best AR, it was the first gun I made gold in the game.