here's my little friend. he has a breach loaded main barrel (screws off) with an aluminum cocking handle and plunger. gets about 100 feet. that's not a guessed distance, i measured it. standard red suction darts.
the lower barrel is powered by the internals of a supermaxx 1500, and gets 30-40 feet. the tether and ring are the trigger for that one. you can have your middle finger on that one and keep your trigger finger on the main trigger.
the device on top is the air pump for the lower barrel.
like it? i've been trying to find someone willing to pay enough for me to let it go. let me know if you're interested, or just want to know more about it. if there's any interest, i can post some internal pics.
it's still not done, btw. there's finishing work to do yet. gotta make it pretty!