I use a Nemesis30 direct thread on a 12.5" 6.8 SBR and really like the light weight and short length as the gun handles about the same as my 16" barreled 6.8. It's probably not as quite as a longer suppressor on a longer barrel, but it's still hearing safe (to me) and I can hear my hits. Mine has been through hell (and looks like it) but the ti can had held up to date (4 yrs) with no issues.