Do you think it could be due to the fact that the weapon I cloned was the Mercenary LMG costume skin for Shokolov AR? Did once try to model my mesh around the Shokolov AR and it kinda worked, the only problem I kept running into was that the bone_clip mesh kept being moved into spots where shouldn't be at. However I think the problem was that bone_clip mesh's pivot point position wasn't in the same position as the gunmag_handel's.Im honestly out of ideas then... I have used that template for my weapon mods and they all worked so far. Not sure if your cloned item its the one causing the issue.