Royfassel - are you sure you dint have the right part? When I got my replacement guide rod I jumped to the conclusion that Ruger had sent me another flat tipped part. I started to pick up the opine and call them when it occurred to me that I was looking at the wring end of the quide rod. When the guide rod is NOT IN THE COMPRESSED POSITION you cannot see the conical end of the guide rod. Try compressing the spring and see what it looks like.