Airsoft Krytac LVOA Full Upper Receiver Package includes the following: Krytac Upper receiver (painted) Krytac LVAO War Sport keymod monolithic rail system (painted) Krytac Outer barrel and assembly Krytac Inner barrel w/hopup unit CCW mock suppressor Front iron sight Maple leaf bucking Rail segment This thing is ready to be mounted on your krytac lower. Thanks for looking.