Totally Safe,Totally Safe and Totally Safe.A snap cap is a device which is shaped like a standard fire-arms cartridge but contains no primer, propellant or projectile. Snap cap is designed to be a fake cartridge from the very beginning.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).7.62x39mm Style, Aluminum Alloy, Red Anodizing, w/ Sling, 6 Pieces in 1 Pack.