Greetings @Dave_The_Barbarian and welcome to the forums!
Thank you for reporting this issue to us, but could you please use the given Bug Report Template?
This template has most of the information we need to start investigating and will make the process a lot quicker for everyone 
You can find it here: NEW Bug Report Template
If you can send us a video where we can verify the weapon behavior, please, send us as well.
Thanks in advance!