Advanced Novelty Tech CO2/HPA CONVERSION KIT

My interest in this topic sparked as soon as it came out. The sad thing is, there is not much out as in informational videos and custon builds. I was really surprised to find nothing on the forums about it. So if anyone here as any custom builds/projects using this kit be sure to post them here.
My upcoming project with this kit is to tap an Umarex Airsoft walter p99 co2 blowback. (I know its an airsoft gun, not an airgun) I plan on using metal 6mm bbs in it strictly for target shooting.