Suppressor Thread Size Common Barrel Thread Patterns –
2021 7 6 nbsp 0183 32 Most aftermarket barrels for common handguns will use the following thread pitches These are about as close to standard as you will get for barrels in common calibers Aftermarket barrels can be purchased in metric threads as well 22 – 1 2 215 28 9mm – 1 2 215 28 40 S amp W – 9 16 215 24 10mm – 9 16 215 24