Contact Midway and see if they can help you confirm that indeed, it can be locked in the manny I described in my reply #4. ...
Better yet, go to your local Walmart or sporting goods store as this is a fairly common design, that can be locked. Most folks miss this option on their soft cases. In Iowa, the law use to require a locked hard case. You might want to confirm this for your state.
Our law has changed and now, a simple gun-sock meets the requirement. .. .
Please get back to us on how you made out and;
Be Safe !!!