This was spotted on Baidu(Link), apparently it’s the Nerf Triad’s internals.
Basically, what it shows us 100% is that the Triad has three direct plungers, and doesn’t just shoot one dart.
Though, the question is, how does it shoot them? Does it shoot one at a time with each trigger pull before needing primed again? Or does it shoot two and then one(as reported by Nerf Mods and Reviews)? Or even all three? I guess we’ll have to wait and see.
Either way, it looks like it should get some decent range with that extended plunger system, and it’s evidently not just a Jolt with some dart holders.