ImmortalRevolt’s V3 ECM for .22lr (for null22 or not a glock). the README (first half) says to use a 8mm OD tube with 4-5.4 ID, the PDF (second half) instead says that .22lr barrels are made from 16mm OD tubes like othe calibres just with 5.4mm ID. so what is the right choice? is this for the suppressor thread? I think that 16mmOD is way too much for either NaG or Null22