Sending back my new 23 gen 4 for upgraded ejector. They would not send me the ejector and told me I had to send the whole gun back. I asked for a prepaid shipping label, he wasn't happy but he is sending me one. I was thinking, im not paying for shipping on a gun I didn't break. If they are going to make faulty guns they should have to pay. I hope this ends the problems with the gen 4s. I was getting brass in the face and a few FTF, this is after the new RSA I received.