The guys at Patrol Base Airsoft have come up with am awesome conceptual mash up. The CZ pistol stock may not be the most comfortable thing ever, but it will make the ATFE decide if holding a handgun up to your shoulder makes it a short barreled rifle. Is this two handguns in close formation or two short barreled rifles? Only the ATFE Tech Branch knows for sure and they are not talking.
You guys out there with real steel guns, the challenge has been made.
