You are correct Cinders, when I got the rifle the ejector screw was missing but luckily when I got the PH5C it did have the correct attachment screws. The rifle ejects fired cases no problem without the ejector screw. From what I have read the ejector screw is there for live round ejection, so I have just tried ejecting some live rounds and they did hang up so I will put an ejector screw back.