If the MK-79 fails to fire, how long do you wait before unscrewing the cartridge?

• A. 15 seconds
• B. 30 seconds
• C. 45 seconds
• D. 60 seconds

Answer: (B)

When a MK-79 fails to fire, you must pause to check for a possible hang fire. A hang fire is a delayed ignition that can occur after the primer fires, so waiting a short period helps ensure the cartridge won’t ignite as you unscrew it. The standard waiting time is about thirty seconds. If nothing happens during that interval, you can carefully unscrew and eject the cartridge. Always keep the pistol pointed in a safe direction and avoid placing your hand near the muzzle while handling a misfired cartridge.