Most split hatch did not have breaks in WWII unless they were made in the one month they overlapped at chrystler, it was i think August. Hence i usually put the threwd protector on the barrel but everybpdy seems to want a muzzle break.
there were WWII Jeeps to Humvees. The m4a1 75 didnt make it out but maybe next year. We are in talks to get it out here.