So I have been doing serious test for a little while. I have found a few weapons that's actual stick in the inventory after saving and exiting, etc. I am still testing but I wanted to check if anyone else has been able to do this or has any info, if so please post weapon code. So far it seems to be as long as you keep the same type of weapon part or category and also seems, not confirmed but DLC weapons stick modded. Please post weapon or item codes that stick. Thank you and will add as I confirm them.