Hi folks, Thanks for the add. As you may expect I have a specific reason for joining. I inherited my dad's Mk1 BSA Airsporter 13 years ago. I have been OK with open sights but now find I can't see the back sight clearly (old age). The gun has some old Parker Hale dovetails on it (19mm wide). I was recently recommended to buy a Milbro C3 9X32EG by my local shooting outlet. The air soft mount is too large (20mm I believe). I am trying to source an adaptor. Any recommendations would be greatly appreciated. Sorry for wordy thread, just trying to be clear.