A snap cap is a device which is shaped like a standard firearms 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).
Offers versatility for training, storage, testing and practice.
Thousands of dry fires without damage.
223 Rem Style, Aluminum Alloy, Red Anodizing, w/ Sling