comes with the selector plate, ball bearings, and QD spring guide. also comes with two screws - this shell uses two extra screws over a regular v2 gearbox, so you can just swap over the screws in whatever gearbox you are using. if this is an issue for you, just let me know and I can run to the local hardware store and get you a full set of screws. has been grinded with a dremel to fit wires out of the back, and to effectively fit the Gate Mosfet optical sticker. does not at all affect performance. bought it for 45, would like something close to that :) I prefer PayPal if possible.