Anyone know if the hero prop had electrical tape wrapped around the handle? Kind of looks that way in this shot:

Also, how does the Ithaca expell shells with only 1 port?

The M37 Ithaca expell by the window under, the one you used to you feed it, unlike some other shotgun of his generation, he could go "automatic"= "faning", no need to press the trigger at each time you pump , you pump once at start then press the trigger, shoot and after only to pump with the trigger still press and he shoot each time you pump.