So anyways here's what I came up with...
Guts are secured by masking tape, hidden by electrical tape...

The Other side...Notice the metal rod to secure the break barrel.

A size comparison...

Break barrel!... breech loading and easy venting...

Ready to shoot!....

Specs:
Onboard butane
Piezo ignition
10" Barrel from an aluminum knitting needle. Colored pencils fit great

Chamber is a vitamin c bottle..
Break barrel is secured by a small metal plate with sliding rod....
Sorry for the crap pics, used my phone again
