The 15mm Studio MiniMount is a universal mount that slides onto 15mm Studio (offset) rods. This Zacuto MiniMount can hold an articulating arm, or any device with a 3/8 16" screw. It can also be retrofitted to be a z-release mount by adding a Zround Mount.
A minimount is also available in 15mm Lightweight and Studio 19mm.
(Link to the Studio 19mm)
More information about Zacuto Products (Link to Zacuto Website)