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####I am not responsible for any injuries deaths or felonies you cause with this device.#######
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Well, I basically took this idea and ran with it.
https://www.instructables.com/id/Make-a-silencer-for-MOST-paintball-gunsmarkers/
I updated it and fixed where he left off. It works well and its fairly light depending on what kind of PVC you use.

Step 1: THE GOODS

*1* Pocket knife

*2* PVC slightly larger than your barrel

*3* PVC 1" larger than your barrel

*4* 2 PVC reducers that fit your PVC

*5* Drill with a dremel bit

*6* Paintball marker

*7* Cotton balls

*8* Black plastic spray paint

*9* Sand paper

*10* Hammer

*11* PVC cutter

*12* Hacksaw

Step 2: ASSEMBLING (part One)

Take your pocket knife and cut out that tiny ridge that keeps the pipe from going deeper into the reducer. Next, take the hammer and knock the reducer a good distance down the pipe. When you get the perfect position, move on to the next step.

Step 3: ASSEMBLING (part 2)

Firmly grasp your PVC Cutter and begin cutting the tube about 1" from the reducer. Make sure it is as straight as it can be, if not it will affect your accuracy.

Step 4: ASSEMBLING (part 3)

Take the drill and equip the smallest bit possible. Now, take the pipe and remove it from the reducer. Next, CAREFULLY drill about ten holes in a straight line, twist the PVC and repeat. Do this about six times.

*as I said before, be very careful when making the holes, our bit broke and sent a tiny peice of metal hurdling towards me and stuck in my arm.*

Step 5: SANDING

Take your sandpaper and wrap it around a stick. Shove the pipe over it. Move the stick up and down thus sanding the inside of the pipe.

Step 6: Cutting the Pipe, Again

Measure the larger pipe and cut it slightly shorter than the smaller pipe in the reducer. If it is too big pull the reducer further back on the smaller pipe, if its too small, vice-versa.

Step 7: Stuffing

Take about 20 cotton balls and tear them in half. Then shove them between the two pipes by any means necessary.

Step 8: Painting

Take the silencer and put the second reducer on it. Then, put it on a stick and paint it black. Let it sit overnight then WHAM-MO! you have a beautiful silencer.