I would dearly love a 16 gauge Pre-War M37 IC barrel, I'd even purchase the whole gun! My Post-War 26" IC barrel(Ray Bar) weighs 2oz more than my Pre-War 28" FULL barrel!
I got the 26" IC from Sharp's new and Les Hovercamp fitted the barrel to my M37 including correctly stamping the serial # of the gun on the new barrel. I thought with the 26" barrel, the M37 would be even lighter but was I surprised.-Dick