Hey Goldwing,
Having owned a RAW HM1000xLRT for a year now ... and just bought another, I can say "The gun doesn't have to be
really loud". The most important solution is reducing hammer bounce, which wastes air creating a
report louder than necessary. Two things which can make it much quieter (best) at moderate/moderate high power setting are the additions of a
SSG (Spring Stop Guide) and
Transfer Port Re-stricter. The SSG stops hammer bounce and the TP restriction reduces air usage above FPE needed.
I removed the large (ugly) OEM moderator - making my own from CFT. The addition of SSG's and TP re-stricters greatly reduce the gun's loudness issues
.