So this gun isn’t in my hands yet but should be soon. I’ve owned a number of Miroku SXSs and quite aware of their box lock guns being Imported to England. Those guns typically were copies of Birmingham guns down to their leaf springs.

This gun appears to be based on the BSS, coil springs and a through bolt, but has chopper lump barrels and weighs 6lbs 11oz (12ga). I’ve had 20ga BSSs that weighed more.

Has anyone else come across one of these guns?