Tools Needed:
-Your favorite screwdriver
-Your hands
-Rotary tool w/ Grinding, sanding, and cutting bits.
-Small hacksaw of some sort
-Brass tubing ID: .503" OD: 17/32"
-Electrical tape
-Hot glue and hot glue gun
-PETG ID: 5/8" OD: 3/4"
-PETG ID: 1/2" OD: 5/8"
-Epoxy
Step 1: Open your Range Master and grab that air tank and hack the handle off. The shell is a little bit of a pain to take apart. I got mine for $4 so I did not care about the shell. I broke it. Then I threw it away. It felt good.

Step 2: Open your Retaliator. Gut it. You can throw everything away. Or keep it, I did. That is a nice plunger and spring. Be sure to keep the trigger, trigger spring, and the orange connector piece on the front of the retaliator. (You don't need the magazine lock.)

Step 3: This is where it gets fun. Use your hacksaw and rotary tool to make the shell look like this:


*Note: in my final product I cut out the magazine well. This is not necessary.
Step 4: take the orange connector piece and cut off the dart tooth thing.


Step 5: The air tank. Hack off this chunk. *Note: If you go any further, your air tank will be busted. Good luck. Also the hot glue is from another step. Stop looking at it.


Step 6: Now in order for the air to be released out of the front instead of the trigger release we have to lock that white piece back. I did it with brass because it fit in pretty well. You only need a little bit.

Wrap one end in e tape once.

Put a little hot glue on the end with the e tape and insert it (twisting while you do) into the front of the air tank.

Step 7: Now to make the Coupler. Take a small section of your ID: 5/8" PETG

That much will do. (Ignore the hot glue please) Attach that to the air tank around the brass. I used hot glue and epoxy.

Step 8: Let's make a barrel. I made mine to fit right into the stock Retaliator barrell extension. Take your ID: 1/2" PETG and get a section this long:

Wrap e tape in two places. One around the end there and the other here:

My e tape is a little chunked up but it works fine. Then on the end take your rotary tool and sanding bit and sand just a little bit off of the outer diameter here:

And take that whole section of PETG and insert it into the original barrel of the Retaliator. Like so:

If it is too loose, add more E tape and possibly hot glue. If it is too tight, take away some e tape. Everything goes together like so:

Step 9: Now put your air tank back into the retaliator shell. Line it up like so:

I couldnt find the picture I had with the coupler in it so this will do. Especially be sure to line it up here:

Then hot glue it all in. I only say hot glue because it makes it still removable if need be. But honestly, the internals fit so well that you don't even need the hot glue.
Now it is time for assembly. Put it back together. Load up a dart like this:

Attach your false barrel. It should slide into the coupler:

Pump it about 8 times and then fire. This thing is real powerful.
Step 10 Paint it. Here is mine (I also redid the pump handle using the retaliators foregrip):

The Golden Gun.
Thank you. Any questions or comments are welcomed. On a side note, this is my first write up. Hope it doesn't suck.