Bruno RC BC-1863X aluminium battery stop
Coming from Bruno RC and made for their BC-1863X servo is an adjustable aluminium battery stop. The part attaches to the top of the Xray T4-specific BC-1863X servo mount and it helps to set the gap between the battery and the belt, using a single screw. The items is made of aluminium and it comes black anodised for wear and looks.
Source: Bruno RC [brunorc.com]