This conversion kit fits full-size and commander-size 1911 frames. The slide is steel and stays open after the last round. It has the optional fiber optic front sight, an adjustable rear sight and a full length Picatinny style rail for mounting optics. The barrel has 1/2 x 28 threads w/protective sleeve for mounting a suppressor. It comes with one 10 round magazine and the original carry case. I've fired 550 rounds though it and it works best with high velocity ammunition. Best way to reach me is davidgpob17 at gmail dot com $425 The only item I have on my watch list for trading is a Glock model 20, not interested in anything else.