Difference(s) between AR15 & ACR Trigger

[Mauser GDog]

Before I go pulling triggers out of rifles, can anyone describe the differences between these 2x trigger groups?
Looking at pictures and some googling make it seem like it's just the springs shape. If so, has anyone adjusted an AR15 trigger/spring and dropped it in an ACR?

 

[onetwentyish]

The ACR sticky has several people have put AR-15 triggers in ACR's.

 

[Mauser GDog]

Ok, I'll go through that sticky again, but while I do that, is it just a matter of swapping the hammer springs?

 

[onetwentyish]

Not officially sure myself, as I have never done it. My understanding is that you bend one of the springs on the AR trigger, and voila, its now an ACR trigger.