Gunsmith Bros STI OMNI Standard Kit w/ RMR Cuts Kit will come with Omni DVC Slide Omni 2011 Advance Frame with Rails RMR Plate Rear Sight Front Sight Airsoft Masterpiece Blowback Unit PDI 6.01 inner barrel 125 recoil and hammer spring AirsoftMaster piece STI magwell 1 mag with laylax gasket