| Code Value | Definition |
|---|---|
| A | CANNON |
| B | SUBMACHINE GUN OR MACHINE PISTOL |
| C | RIFLE-SHOTGUN COMBINATION |
| D | DISGUISED GUN |
| E | ELECTRIC SHOCK GUN |
| F | AMMUNITION |
| G | GRENADE |
| H | BOMB |
| I | MINE |
| J | MISSILE |
| K | ROCKET |
| M | MACHINE GUN |
| O | MORTAR |
| P | PISTOL |
| Q | SHOTGUN PISTOL |
| R | RIFLE |
| S | SHOTGUN |
| V | SILENCER (MUFFLER OR SOUND MODERATOR) |
| Z | ALL OTHERS (INCLUDING GUNS THAT FIRE ELECTRICALLY-CHARGED DARTS). WHEN THE Z CODE IS USED, THE TYPE OF FIREARM MUST BE DESCRIBED IN THE MIS FIELD. |