The Dark Knight builds his own Custom TTI/STI 2011 Combat Master Gas Blowback Pistol as seen in John Wick 3. If you want to build your own rather than buy the licensed ones, then you might want to watch this... "Inspired by John Wick 3: Parabellum, this is a custom TTI/STI 2011 Combat Master Airsoft Gun. This is my first time building my own Custom Airsoft Gun.

Credit to my friend Steven for providing me the lists of very high quality parts including Gunsmith Bro, PHG, AM & many more."