We have been working on an improved barrel spacer, including a taller model that fits the CSV17. These new spacers match the curvatures of the barrel and chamber and provide better support. They are sized to match the PVC barrel/chamber spacing according to the drawing dimensions of the fittings, providing the fittings are cemented fully touching and straight. Here is a prototype shown on my old test launcher. Note that we don’t recommend going above 90 psi, however the parts are rated for more and we have tested at the label pressure without incident.
We are just starting to make these parts so they should show up in orders shipped in December providing things go as planned.