How do you assemble the Iver Johnson's arms shotgun?

To assemble an Iver Johnson shotgun, first ensure that the firearm is unloaded and in a safe environment. Insert the barrel into the receiver, aligning any locking mechanisms, and then secure it by turning the barrel latch or locking mechanism as per the model specifications. Next, attach the forearm by sliding it onto the magazine tube and tightening any screws or latches. Finally, inspect the assembly for proper alignment and functionality before use. Always refer to the specific model’s manual for detailed instructions.