Questions to P-22 owners :
Does point of impact change after reassembling the barrel ? How tight should the nut be ?
Does point of impact change depending on the amount of torque applied to barrel nut ?
I haven't seen a torque spec for the barrel nut.
I have only read "finger tight", but I use the provided wrench to make it snug. I do not believe that POI will change with small torque differences, but if the nut were loose, then it may. Sorry, no practical application observations, re: torque.