Materials:
2.5 feet of OMC's PETG
11.25 inches of thick wall PVC
2 3/4 to 1/2 PVC couplers.
2 inches of thin wall 1/2 inch PVC
3.5 inches of thin wall 1 inch PVC
Fishing line
E-tape
Hot Glue
Plumbers Goop
Dremmel
Phillips screwdriver
First thing is to open up your LBB. Next is to plug the pump. Here is a link on how to do that. Next is to cut down the original barrel so it is about one inch long. Then dremmel the inside of the original orange barrel to fit PETG tightly. Like so.

Now it's time to make your new barrel. Just put 1 foot of the PETG into the 11.25 inches of thick wall PVC with hot glue like so.

Also make sure that the PETG is sticking out a little bit.

Now you are probably thinking why I am making the new barrel in the middle of the mod. Now it is time to find out why. Put one of the couplers over the original cut down barrel. It should look a little like this

Now shove the new barrel in the coupler PETG poking out side down. This will hold the coupler exactly in the middle. Now hot glue the coupler on so it has a nice hold. Now it's time to goop. Cover the connection of the coupler to the gun with the goop. Now while waiting for the glue to dry you can dremel the gun down so the coupler can fit comfortably. Now it's time to make another barrel. But this barrel will have three shots. First get three six-inch segments of PETG. Tape them together like so.

Now take a little fishing wire and hot glue it on the ends of the barrels so the darts don't fall into the rest of the barrel.

Now put the PETG triple barrel into the thin wall one inch PVC. You are going to want to do three layers: hot glue, plumber’s goop, and then hot glue again. Here is a diagram.
!--Hot
!--Glue
!
!----
!
!
!Plumbers goop
!
!
!----
!
!--Hot
!--Glue
Hopefully this diagram will make sence. Now after everything is all nice and dried up you can finish the triple shot barrel. Now to glue the other coupler to the thin wall one inch PVC (I reccomend PVC cement). Now glue the two inches of 1/2 inch thin wall PVC to the other end of the coupler. It should be like this.
Taken apart.

Put together.

Congratulations you have finished the mod. Ranges will be posted later. The triple shot will also work on any other couplered gun. But I made it mainly for the LBB because it looks amazing in that gun. Also as a few side notes i highly reccomend that you goop the trigger of the gun where it starts to fork. And goop the pump handle because the plastic will break easily.
