You're quite right, I checked my pics and I have one where you can see the black blanks. The red must have come from a reforger or ace mobile... The black plastic had the aluminum bases and I had a stoppage once that had me remove the barrel to see what was wrong...four or so blanks all fell out at once. All jammed in together. They didn't work very well. I wanted brass blanks but there didn't seem to be any. The gun was an old vet...77748 was the gun number...I had it written on my bush hat for years after.