First time I have seen one and quite impressed with the quality. Was wondering if any members out there have experience of one of these ? Very well built with solid machined parts, piston surface is ground on the two bearing diameters. The spring is quite long at 37 coils (3mm) but this one had collapsed in length. Fitted new spring, slightly shorter but power was not high due to the polyurethane seal was slightly worn. Think I should turn a groove in it to fit an O ring to increase compression.

Baz

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