Bingo Airsoft Designs released three videos on their Advanced System 5 (AS5) airsoft gun that is an HPA-powered 3D-printed airsoft gun. The videos give is an overview, a barrel swap, and hop-up replacement for this uniquely for airsoft gun design... "This video provides an overview of the Bingo Airsoft Designs Advanced System 5 (AS5) Airsoft Gun. The AS5 is the first fully 3D printed production airsoft gun available."