I currently have four 9mm SBRs (thank you, amnesty) and one YHM R9 suppressor mounted using YHM’s sRx taper mount. I’m finding it spends most of the time on my MPX-K with a 8” handguard. Moving the R9 to another gun takes the MPX-K out of service unless I switch back to the original short handguard. I’m seriously considering picking up another 9mm suppressor and direct threading it on the MPX-K.
How is the SiCo Omega 9K? It seems to be a popular model. How gassy is it?