The remaining parts are the selector pin and release lever (Figure 3 in the patent above and Figure 2). The former can reduce the shot volume by making the group begin extraction sooner when the short pin on the piston touches a boss either on the selector valve (for the small shot), or directly touches the release lever in the

Nice. Where did you find the pricing?

I agree 100 per cent!!!

The valve has special attention due to its unique parts inside. The valve comes apart on both ends, the big cap nut and bigger hex nut on the rear and the triangular flange holding the engagement lever. The rear internals popped out after removing the rear fittings, but the front assembly needed an arbor press to push it out of