There aren't many piston drive lights around these days but my suggestion would be to look for a Balder HD-1. You might find one online somewhere or you could just buy a used one in mint condition here on BLF with a WTB thread.
There aren't many piston drive lights around these days but my suggestion would be to look for a Balder HD-1. You might find one online somewhere or you could just buy a used one in mint condition here on BLF with a WTB thread.