I have one , I could check the pitch ( walle TPI) if I could find my gauge, tonight.
It seems to work fine, but not indoors in a cement range, the sound is a bit much.
A pipe would be better, but you know, Ca. Also I like to think of the S as steel/ versa plastic.
I don't like the safety/ hammer drop, but I don't use it anyway, but really like the gun.
Later,