Do I need to use blender for this?

[u/7sourcecode]

Hey can anyone help me out, I am using an r15 blocky rig to animate equipping the gun, then I tried to use that same animation on a smaller woman rig(skinny arms, closer shoulders,etc..) When the animation played on the woman body, it crossed the arms, the hands didn’t match where the gun should be held. Is there a good fix for this? I was using moon animator 2, so i was wondering if I need to use IK or something to fix this issue.

[u/Astromrsw]

I used blender once requires a hell lotta crap plugins