I have a gen 3 g23 od and it has about 900 rounds through it and the reciever where the guide rod is is being damaged when the gun is fired the slide hits the frame and is making crackes and raised places are rubbing the guide rod. ive sent it to glock once already and they told me it was fine and they replaced the guide rod with a heavier one but it is still giving me trouble. can some one help me please i will be uploading pictures later. ps it has only ever had factory loads through it winchester white box, federal bulk, and some umc bulk. plus one box of speer gold dots for functuality in ccw.