Venom toxic toys was a company back in the 90s that jumped on the aftermarket parts wagon for mags and cockers. Good luck finding leftover goods such as that. Laku is a master of finding the rare.
The second set is just rigid AL tubing that was bent and anodized. A member here did a run or 2. I bought tube from him and did my own custom lines for my wife's rt to get rid of the macro line. You could also buy the tube from McMaster Carr and bend it yourself.