I decided my back ups don't need back ups. Your choice of notoses, notocees, noci what ever the plural is. One is original model without degas screw(I made a degas device that uses hammer adjustment screw), ported 4mm, authentic huben dream valve regulator, maple custom peek poppet(original poppet leaked), 36cc bottle, shooting chp at 840 fps+ - 2, huben reg is very consistent. Second notos is new model with degas screw, authentic huben dream valve with Picatinny rail, only mods are screwing on huben valve and 30cc tank, buck rail ar grip adapter, folding stock adapter, otherwise completely stock, still has new car smell, looks brand new, shooting chp at 719 fps with reg at 1500 psi, barely touched. Both come with original boxes and parts to convert back to stock. Ported one $650 shipped, like new one $750 shipped