Quote History Quoted:
What bad things do you hear about suppressed glocks?
View Quote
Aftermarket threaded barrels, especially precision fit barrels, can have cycling issues because they are too tight. I had this issue with my G21/GM-45 and corrected it with a spring kit, moving up to a spring slightly heavier than OEM. The symptom: the slide would not go fully back into battery after feeding a new round, until the trigger was released. Fired every time, but not a comforting thing.
With my G19 and G26 (GM-9), I had to make my sub 147 loads at max in order for the pistols to cycle.
For the Sig P320RX full size, I had a GM-9 on it that ran 147 subs with no issues. My threaded barrel was a Brownells. The barrel moves quite a bit when it unlocks, so the threaded barrel has to extend beyond the muzzle more than required on a Glock.
It makes a full sized pistol pretty long with the can mounted. Not great, not terrible.