The Cartridge Rapid-fire Trigger (Rensya Trigger if you insist on following the Romaji product name) was the greatest draw when I noticed the existence of the Cartridge System line and I had to get it. I decided to separate this post due to the complexity of the gimmick involved.
It’s a Cartridge Trigger that allows you to load and fire up to 3 Cartridge Shots. Compared to the stock Cartridge Trigger, this part also ejects spent Cartridges when you chamber the next one.
3 runners of large parts and two empty Cartridges.
Assembly was an interesting process as the various halves interlocked with one another. I should have taken pictures step-by-step though.
To load cartridges, you have to slide a spring-loaded stopper on the underside all the way to the right, pull the magazine section halfway back and load the cartridges. You can see the blue stopper in the previous picture.
When done, you unlock the stopper so it pushes against the cartridges, then slide the magazine forward. It’s capable of single-shot mode, and you chamber cartridges by pushing the magazine in. To reload, pull the magazine out and slide it all the way back firmly to eject the spent cartridge.
Here I’ve replaced the stock trigger on my Meteor Dragon.
It’s a very impressive-looking gimmick when you play with it, especially with the ejecting action. However it doesn’t eject the cartridges perfectly all the time, especially the last one. I think it’s because the spring tension in the stopper becomes too weak.