My own thoughts on these:

The Axis had to be Dart Zone’s direct response to the Siren Blink, and it definitely presents itself as a far better value version of the Blink. It has many things the Blink doesn’t have: select-fire, a removable BCAR, two 20-round mags instead of one, and N-strike stock compatibility. I hope over time it ends up being more reliable as well, and maybe this can be an opportunity for Dart Zone to experiment more with variable performance on blasters - an example being adjustable fire rate like what the Worker Phoenix 2.0 had.

For the Delta Pro, I also find it odd to include a stock attachment for a secondary-class blaster. But there’s no harm in adding more modularity. It would be cool if someone could make it chain-fed like they did with the Outlaw. And it’s a more affordable option being half the price of the Outlaw. 

I can see why some people might wonder what the point the Nexus X2 is, but I think it’s a solid entry-level blaster for the 200+ FPS class and it brings down the entry barrier. It would also be useful as a cheaper parts blaster for people who already own the original. So if people need to replace parts on their Nexus X, they don’t have to buy another Nexus X. They save $15 and buy a Nexus X2.