Hard to tell from the one angle in the picture, but looks like it might be another N-Strike compatible adjustable stock. However the tube does not look like a buffer tube or even the AF Spectrum style tube.

What make you so sure its a tube? from the look of the stock, it is non-collapsable

Yeah, N-strike compatible but definitely no tube. Would've been SO much cooler had Dart Zone called it the V-Twin

And I know the V-Twin Gatling Blaster exists but c'mon V-Twin fits the Vulcanator much better

It's a trigger safety

Why not on the side... then now you have to pull 2 triggers to fire...

People will gut them out anyways. Why they couldn't make the safety like, for example, on Nerf's Knockout or X-Shot's Orbit? On a trigger guard?

Or like on HK P7 where the grip is the safety mechanism?

The standard looking lever safety is probably the best looking safety design in my opinion

Guessing there won't be a replacement for the Mk-3?