I have been running a Quicksilver can for a while now (gave up my G5). The last time I cleaned the rifle I noticed that the rear buffer was mauled to pieces. I addressed this with Alex and came to the conclusion that the excessive pressure (more than usual) from the Quicksilver was the issue. I got Alex and Dr Quilligan together so information could transpire. I suggested to Alex that we change the suppressor gas hole to a smaller dia. I have reduced the current .046 gas hole to .035. so far no problems.............