Seems I can't keep away from the oddballs. This is an excellent condition 8" .22 caliber. The muzzle has an interrupted thread adapter, indicated by seller for a Maxim suppressor, which I believe. Appears to be a press fit which does not move under moderate pressure. The front sight has an insert, which I suspect may have been the base of a taller blade to clear the suppressor.
The rear sight has been replaced with a taller sight, unlike any that I am familiar with. Did Maxim offer sights to accommodate their suppressors?
Bob