How stacked is your cycle? Depending, I'd just add on a 2nd workout session specifically for arms on your upper body day. If you're on damn near any cycle (especially if you're running tren) I believe that you'll be able to handle extra sessions like that.
5 min sled dragging (1min rest)
A1. 5 min Biceps exercise (1min rest)
A2. 5 min triceps exercise (1min rest)