Thats pretty good, the Vertecs are the newer models however you will go through CO2 pretty quick and its a little bit of a hassle to unscrew the little wing nut, pull the empty co2 out put the new one in then screw the nut back up, ahhhhhhhhhhhhh, or you could just carry xtra mags. Now guys correct me if i"m wrong but also CO2 contains no silicon or lubricants so it will tend to wear the rubber out faster, thus you have to keep it well oiled. I would go with a GBB that uses Green Gas and buy a Propane adapter (saves money on gas). JUST MY 2 cents!!!
PS THE KJW VERTECS... greaaaaaaaat