If you can't find a Real Sword Type 97 AEG, then why not print one? BEN en 3D shows his version. The QBZ-97B AEG is a fully functional airsoft replica that is entirely 3D printed, offering a unique and customizable option for airsoft enthusiasts. The replica features a 14mm CCW threaded metal barrel and is compatible with all M4 magazines. It comes in two versions: a "Ready to Play" version that is complete and ready to use out of the box, and an assembly kit that requires assembly and customization. The "Ready to Play" version includes a proprietary AEG gearbox, a 3D printed hop-up unit, a precision barrel, a hop-up bucking, a programmable MOSFET, and a mid-cap magazine. The assembly kit requires the user to specify their desired firing mode, burst count, replica power, BB weight, and hop-up bucking.