Weapon bouncing around in my dudes hands

it looks fine in blender. first I thought it was because I used a constraint to move the weapon but then I made it a parent so idk man, please halp

i got pictures

there’s more where that came from

update: there seems to be a problem with the fbx, basically i ■■■■■■ up somewhere in blender. here is the blend file

the deformation is bugged due to duplicate vertex groups, you have to make a new armature deform for the mesh.

i’ll recreate it later today and see if i still have the problem. i remember having the same issue a long time ago so i’m sure it won’t change.

update: turns out my blend file sucked. making a new one fixed it. still anoying tho

This baffles me a bit. The only thing I can think of is the is rigid body physics. I can’t really figure this out, Any chance I could get the model to test?

yeye, i’ll add it to the main post in a sec. i’m not using any physics simulation

Please upload project so that I can check it