The handgrip set S-4 can be attached directly to the bottom of most classic ARRI cameras, the ALEXA via the bridge plate adapter BPA-1/2 and also the AMIRA via its baseplate BPA-3.
The S-4 can also be swiftly mounted to the bottom of all ARRI bridge plates such as BP-8/9 and BP-12/13, for quick transition from tripod to shoulder.