Control Rig Reference Mesh for Animation

Hi, I’m trying to use Control Rig and Sequencer to make some animations for my FPS, and I was wondering if it’d be possible to attach a gun mesh to one of the hands of the rig for reference.

I’ve been trying to figure this out for a couple of hours as it would be far more convenient to create/tweak animations in Unreal instead of constantly swapping to Blender.