Hi Arthur, I used to own an FWB P34 and a FAS604 but I am no pistol shooter and have since let them both go.

I agree pcp match pistols are quite noisy, I used to shoot in my garage but after complaints from the wife had to stop.

However the FAS was much quieter and was fairly acceptable to her indoors. The velocity of the FAS was a fair bit lower than the P34 and that could also have been a factor in a lower air blast from the muzzle.