Pyragon for the first time, but there are still some folks who are labeling this latest Vortex Blaster as another Praxis recolor with different gear (a la Lumitron). I figured a side-by-side comparison would put those theories to rest rather quickly.
There are enough significant external changes that would make the Pyragon it's own unique blaster design. While it is about the same shape and size as the Praxis, there are notable differences between the two. I direct you, first, to the longer tactical rail on top of the Pyragon. The lower portion of the blaster also has a different design to it, with the Praxis looking like it might actually interfere with the drum on the Pyragon, which has led some folks to think that the drum is actually part of the Pyragon design housing 4 10-disk Magazines. The handle construction on both the blasters is also different.
However, this side-by-side comparison also reveals an important detail: the layout of the functions. You'll notice that the trigger and magazine release switch are in the identical spots on both blasters. Additionally, the jam release switch and pump-action prime are in the same places as well. This leads me to believe that the Pyragon is running the same kind of Torsion-spring firing mechanism as the Praxis, Lumitron, Vigilon, and Proton. However, none of those designs feature Slam-Fire, which has yet to appear on a Vortex Blaster. Many hope and speculate that the Pyragon will be the first Vortex blaster with Slam-Fire, with the large ammo capacity drum being a big reason to have rapid-fire capabilities.