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A snap cap is a device which is shaped like a standard firearm cartridge but contains no primer propellant or projectile. It serves the same function as a dummy round but different in that a dummy is usually made from a real cartridge with its propellant and primer removed (still has the projectile and the casing) while a snap cap is designed to be a fake cartridge from the very beginning. A snap cap is used to ensure that dry-firing firearms of certain designs does not cause stress and impact damage to the firing pin and/or the barrel breech. Some snap caps contain a false primer that is either spring-buffered made of rubber or soft polymer or none at all. The springs or plastic will absorb the impact force from the firing pin during dry-firing allowing the user to practice trigger pull or safely test the function of the firearm action without damaging its components.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
