The gun works perfectly Paco, I took it home and tore it apart just to be sure. The CA mags he bought will not feed, or the ones that did feed quit working after a couple loadings. I put one of my Marui high caps in the SR16 and it ran like a champ, but with the CA mags it would not feed properly. I ran it on semi and it would shoot fine, 1 BB at a time, full auto... look out, I almost didn't want to give it back to him.