After actually putting in some amount of work on it (unlike the rest of the KISS), I've finally finished the KISS Avenger. It's basically a compilation of the small ideas I've come up with over the past month, stuck onto the KISS-3, with slide-action modification. Here's how it differs from the KISS-3:
Clip Feed: I added on a bottom clip, fed by rubber bands.
Independent bolt: I used to think the only way to keep darts from feeding behind the bungee on a KISS-type gun was to have a bolt directly connected to the bungee (like the string on the KISS mini mk. 2). Unfortunately, this reqires either a cocking string (which gets annoying), a cocking action behind the trigger (like on the KISS carbine. This gets really long and bulky with a full-power KISS), or a solid bolt, which adds a lot of weight to the bungee and hurts performance. As a solution, I came up with the independent bolt, which is made with a clothespin (the other kind, just one solid piece of wood with a slit in it and a knob on the end) and a rubber band. The clothespin is inserted from the back of the gun, with the catchpin going through the slot in the middle. The rubber band goes through the barrel slot behind the clothespin, and both ends are wrapped around dowels. When the bungee is pushed back, it also pushes the bolt back, allowing another shell into the chamber.
Ejectionless shells:
That's 3 shells and a nano dart.
The shells are just short sections of 1/2" CPVC. They wouldn't have worked for micros, but they work great with nanos.
The shell-stop is made of 3 screws threaded through the barrel wall near the muzzle.
The ejection port is cut into the barrel right under the cocking slide/grip (this is top-cocked to allow for the bottom clip). The cool thing about this is that, since I use the cocking grip for a forward handle while firing, the shells fall right into my hand! This means I don't have to go around looking for shells.
I also put in a steel guide rod, instead of the PEX one on the KISS-3. Much more stable, and it also acts as a backup blowgun for a nano dart if I empty the clip but need another shot.
Overall, I'm quite satisfied with this gun. It doesn't skip over darts, it clip feeds, it's got a working shell system, and it's still compact and comfortable.
