I have picked up a No4 Mk2 action barrelled with a 7.62 Parker Hale T4 barrel. I know these are quite common especially on the UK. A problem I have encountered is the mount for the foresight, The barrel is tapped for what I assume is a wedge shaped mount and the holes are .55 inches apart. Does any one know where I could pick up the right part I have a Parker Hale foresight to suit.