its a gun, its shoots a bullet, the same way as a Sig, a 1911, my XDm, G23, etc...
on a side note, what kind of Sig do you have? I was fondling a P220 Comp today at the Pawn shop, it was extremely well balanced and almost came home with me. I also played with the 238 (the little 1911 copy thats a .380)...it was this funky titanium multi-color