Pitbull depinger air displacement

Not much, it does not take up that much volume.

I haven't seen any change in shot count on mine.

And TheLakeRat IS the houses mouth since he builds the Pitbulls! Take what he said to the bank.

I could not say since I bought my Pitbull Mega from him so have no experience with an unmodified one.

My opinion was based on taking mine apart to 'check it out / learn my gun' and seeing it's size let me know it does not take up much volume so could not have much effect.