About this detail of the Tiger
Tigers were equipped with an MP40 machine-pistol for the use of the crew if they were forced to leave the vehicle. This gun was stored upright in a holder near the turret side hatch.
Rye Field's Mid Tiger kit does not mention this item in the instructions. However, the kit's internal turret wall (part S1) has an embossed vertical strip; this represents the metal strip where the gun's holder was attached. It's likely that Rye Field studied the Tiger of Saumur Museum, where the gun's holder is missing but the metal strip is still in place.
The kit contains unused parts from a previous kit, and one of them is the MP40 weapon in its holder. To improve accuracy, you can apply this part J23 to the wall.
The correct position for part J23 is shown in this view, where we are looking down from above at the turret edge. Unfortunately this does not line up exactly with the raised line on Rye Field's turret wall.