USAirsoft does a video of this customised HPA-powered AA-12 airsoft shotgun. This is based on the only airsoft AA-12 in the airsoft market, the Tokyo Marui AA-12 AES. If you have not played against someone who has an AA-12 AES in a CQB game, better get out of the way when you see one. An HPA-powered one is even a more menacing one in an indoor battle.