Post by Mark
Markzzr,
I wonder, are these the new MGC cartridges or something new? You did say the CP system though, so that leads me to think that there just might be a new manufacturer out there (although, I am very skeptical as it wouldn't be practical for a manufacturer to tool up for the modelgun market as it is a very small hobby)
Although, there was (or is) a Japanese company called Mullberry hill that made very relistic cartridges with Remington etc. stamped on there cartridge rims. These cartridges where verrrry expensive and where a "work of art" so, I don't think that they where ment to be fired!