These things are awesome! I liked mine so much I bought two.

(Dual-wielding double-barrel shottie pistols is now my preferred method for rapid room-clearing.

)
While they're not true to life "real-steel" replicas, they are a lot of fun. They fit nicely in the hand, and I can stuff one in a double M4 mag pouch, though the grip protrudes from the side. (They come with a custom hard-shell MOLLE/belt holster, but it takes up too much real estate for me.)
The trigger setup is similar to the Solo, in that there is no sear; it's a simple lever system, so a quick stiff trigger pull is required for best operation. As it's essentially barrel-less, the BB dispersion is crazy; essentially a cloud of 12 or 24 BBs expanding rapidly right from the muzzle.
The single/dual barrel switch engages & disengages the right barrel's pin, so that I can fire the left barrel, then flip the switch to fire the right; or I can fire both at once. Switch is well placed, I can fire consecutive barrels nearly as fast as a semi-auto.
Really, the shells and firing mechanism are so simple, I can't ever see a problem occuring besides o-rings wearing over time. I've had no problems with mine yet; the o-rings on the shells were a little dry when purchased, but a few drops of silicone oil solved that.
You get the gun, holster, two shells, a CO
2 adapter, and two sets of spare o-rings for the shells, all for $90. And they're assembled in Canada. :salute: I think it was a great buy.
Also, a little birdie mentioned a hint of a possible rumour that a barrel & stock extension might be being prototyped as an add-on kit, that would give it more of a Mad Max sawed-off look.