Is there a trick to fitting this part: http://www.thecustomsabershop.com/MH...lder-P315.aspx into the main body tube(http://www.thecustomsabershop.com/Hi...ctor-P126.aspx)? The part slides in and fits perfectly. But once it's in, there's no gap between the speaker and the threaded end of the main body tube to screw the pommel back on to the main body tube.