I am attempting to make a weapon that is completely modular using blueprints. When holding the weapon in my hands everything works perfectly because physics is turned off. When physics is turned on so that the weapon will drop to the ground either from my inventory or spawning it into the world the attachments swing around the bash mesh. They stay aligned to one another though.
Here is an example: http://imgur.com/a/VE4yi
If I keep physics disabled it will hover in the air and never drop to the ground. I am looking for a way to lock the position of the blueprint attachments to the base mesh so that they stay aligned.
I made sure the collision box also would contain the possible attachments. Now the attachments do not swing around, but, they go to one exact position once dropped. Here is an updated photo of the new behavior.
It will stay in that position relative to the gun regardless how which side the gun is laying.
Let me know if you have any additional questions.