ICS cxp ape used about three or four times not getting enough love. Will come with everything in picture. Things that have been done to the lower retro arms red trigger, retro arms trigger unit (broken), shs height torque motor, and helical gears. Upper number one ICS bore up kit, stock spring, stock spring guide, stock air nozzle, stock tappet plate, and stock 6 metal tooth ICS piston. Second upper lonex m16 compression set, stock air nozzle, shs 14 metal tooth piston, stock spring guide and cut 160 spring. The barrel is I think a shs 363 mm 6.03 stainless and the bucking is a maple leaf 75 degree with flat hop nub and will come with an extra hop up.