You set the briefcase down on the bed, set the numeric locks either side of the handle to 777, and push in the release button. The two latches click and you open the case.
Inside, in three specially designed compartments, is your trusty sniper rifle. You take out and examine the parts. It all seems to be in order. You put the parts back into the case, pressing the latches down.
You glance at the alarm clock on the bedside table. You're running late!