Can you change barrels on a JC Higgins model 1101 from 16 to 12?

No, you cannot change barrels on a JC Higgins Model 1101 from 16 to 12 gauge. The Model 1101 is specifically designed for a 16-gauge shell, and its barrel is not compatible with 12-gauge ammunition. Attempting to use a different gauge could result in safety hazards and damage to the firearm. Always consult a qualified gunsmith for modifications or repairs.