Paintball Gun Airsoft SHOTGUN Conversion

Here I took my ol' single shot, pump action, .68 cal, 12gram co2 powered paintball gun and fitted it with three smaller barrels.
Using 3 smaller bic pen tubes made it easier to load and fire. everyone else before have always used paper or foam wadding which slowed down fire dramatically. Here, all you have to do is have a handful ready, drop as many as youd like in and fire. keep in mind, less bbs in the barrels, the faster they will shoot out. 1 in each barrel will annihilate someone.  2 or more is effective (1' spread) to around 30 or 40 feet, then you just lose power as you add more. if you want a grenade launcher effect, throw in a big handful and enjoy.

the materials needed-
three bic pen tubes. 
electrical tape
scissors 
hot glue gun (for sealing)
Pliers or multi tool could be helpful as well.
any paintball gun with .68cal.
 

Get all your materials and tools together, plug in the glue gun to preheat. 

You're going to want to take apart the pens until you have a straight tube.

take those pen tubes and put a conservative amount of tape (so they still fit in the paintball gun) on each end like so.......

Now, take the pointed end of the pen with the ink tube attached and pull the brass colored part out along with the ink, leaving it hollow. take these and insert them into the pen tubes you taped together. this will allow air to flow, but bbs wont fall through, into the paintball gun. 

Now in order to keep an air tight seal, you're going to have to put a generous amount of glue in between the three barrels, you can even glue all of the way down if you would like. 

now, take the barrel apparatus and simply slide into the barrel of choice and give it a good glue job. seal r on up. 

you can use the end caps of the pens as caps to hold your bbs in when not in use. one thing i have to do is to make a sort of bushing so no bbs fall out when the barrel is tipped down. 
Have fun, always wear eye protection. 
I am not responsible for any damage to your person(s) or property. 
As paintball Guns are extremely powerful. 
Be safe!