In addition, due to the lengthening of the barrel, the position of the sight moved forward, the camera door was raised, a pair of big wings were added (also to increase the sense of science fiction), and the sight was also raised. Finally, grasp the size of the handle to expand it to match the hand shape of the robot police. AUTO 9 always takes three shots in the movie. The advantage of some shots is that each shot leaves a spectacular muzzle flame in front of the camera. However, although the gun is a real gun, the sound of the gun was added in post-production, and the sound of the gun after production was completely different from that of the real gun. The TV version made another AUTO 9, but it was lighter than the props in the movie version.
In addition, the prop gun in the movie is named AUTO 9 not because it is a fully automatic pistol that fires 9mm bullets, but because the full name of the shot in the background is "the 9th automatic pistol patented by OCP".