First post, hoping someone can help me with my issue. I have disassembled the A01 several times for cleaning, etc. This last time the guide rod plug was difficult to remove and took several light taps to get it and the guide rod out of the slide. On reassembly the guide rod plug will not slide back into position. It is difficult to see but it appears a slight ridge has formed of the end of the plug. Has anyone else had this problem and what do you do to correct it?? Thanks in advance for your advice.