My L'nLs have been through a lot. They've had CPVC, constricted brass, brass in PVC and Crayolas. Recently I decided to give them a complete overhaul and this is what I came up with.
I wanted to add 4" of Sch. 80 on each one, but didn't want to Dremel out the cases to put in PVC couplers, and I didn't know how to attach the PVC to the nub left over on the plunger tubes from cutting off the stock barrels. I came up with a fairly original solution. Finally, here's the mod.
Materials:
L'nL
Thin paper, the kind that is white and comes in 8 1/2 by 11" sheets
Pen, pencil or something of similar diameter
Approximately 4" of 1/2" Sch. 80 PVC
Hacksaw/PVC cutters/pipe cutters
Hot glue gun
Dremel, exacto, file or something else to carve out the end of the case
Small springs to replace the trigger and catch spring, only if you need to
Procedure:
First, open up your L'nL. There's a screw on the opposite side from all the rest on the barrel end of the gun. Once you've got it open, replace the springs if you need to and take out the plunger tube. Here's a picture of how the catch and trigger mech go in case a spring or the entire trigger flies out:
If you haven't done so already, chop off the stock barrel at the part where it tapers off.
I've seen this in some other mod write-ups, notably crankymonky's NF mod, and supposedly the idea was pioneered by NinjZ, so props to him for it: take some e-tape and wrap it around the plungerhead for a better seal. My plunger tube is completely filled with gunk and I can't get it out, so this step was completely necessary for me. If you already have a good seal, you don't have to do it. Here's a picture of the wrapped plungerhead:
Now plug in your glue gun and let it heat up. While it's doing so, grab your paper and a pen, pencil or other object, take the paper and wrap it around the object. Then pull the paper tight so that it's snugly around the object. This can be tricky to perfect. Here's a picture to show you what I mean, it's hard to explain:
Once you've got it pulled taut around the object, try to push the folds back over each other so you have a cylinder of paper made up of several layers. Then cut it to about 1.5 or 2". By now the glue gun should be heated up, so take the paper section, put it in the nub on the end of the plunger tube and let it expand freely until it's snug and its own outward force pushes it up against the inside of the nub, increasing its strength:
Make SURE that the paper doesn't go inside the plunger tube, only the nub on the end of it. Wrap a little bit of tape around the cylinder, make sure the other end fits in the Sch. 80 and glue it in:
Don't unplug your glue gun yet, you'll need it later. Next, take your Sch. 80, mark it off at about 4", or whatever length you want as long as it's reasonable (I'm leaving it up to you to decide what's reasonable) and cut it. I used a Sharpie to mark mine before cutting it:
After it's cut take that section of PVC and put the cut end over the paper cylinder on the end of the plunger tube, and push it down until the PVC touches the end of the nub, but be careful not to smash the paper. Glue the back of the PVC so it's bonded with both the paper and the end of the nub:
Now, this is the easiest part and my L'nL had already had it done from previous mods, so I have no picture. Take your Dremel and shave out the end of the gun so that's it's just wide enough to accomodate the PVC and pinches it a little bit. It's vitally important that the hole isn't too wide; this way it will help hold the PVC in place.
Finally, put everything back in place and glue the end of the gun (the part where you Dremeled out the hole for the barrel) shut around the PVC so that it's in there very tight and won't come out. Here's the finished product:
It looks like the barrel extends out too far from the gun, but keep in mind that it's only 4". Besides, I like it better with a longer barrel.
Now you're finished! You can customize it any way you want. I recommend adding bands for the best performance. I hope you enjoyed this mod.
