I integrated my 750 into the orange tank of my old 1500.
This is not an extremely easy modification because it requires some skill with a hacksaw.
Materials:
- 1 SuperMaxx 750
- 1 SuperMaxx 1500
- 1 Hacksaw
- 1 File or Dremel
- Foam Backer Rod (Preferably 3/8" but you can use whatever diameter you want)
- Electrical Tape
- Duct Tape
The following pictures help explain the procedure that I took in order to create Kronk.

My plan on where I want to place the 750 within the 1500.

To accomplish my plan I sawed off a piece of plastic from
each "flap" on the top side of the interior of the orange tank. The size of the pieces that I sawed off were approximately
1" by 1/2". However, since the hacksaw is not a very accurate instrument I had to figure out exactly how much
I needed to saw off through trial and error. If you are really careful it is possible to keep all the screw posts intact.

I also sawed off the protrusion on the top on both sides.
This allows the air tank to fit through.

After that I sawed off a piece of the back side of the orange
part so that I could let the pump shaft protrude through the gun. The square was about 1" by 1".

It's all coming together...

Aha! Success at last! I put on finishing touches by wrapping
a layer of duct tape around the plunger tube to give the 750 a tighter fit inside the orange tank. A rubber band
wrapped around the orange tank and the front of the 750 keeps the 750 barrel straight. In order to keep the
plunger from falling out I wrapped FBR around the plunger and duct taped it to the plunger tube. The black tape
that you see is electrical tape. I wrapped it around the air tank of the 750 to protect it since it is exposed.
To attach a trigger I did the Bic Pen modification to my 750 first. Then I was able to put a keyring
on for use as a trigger by drilling a hole through the bic pen and sliding the keyring through the hole.

This is what Kronk looks like from the user's point of view.

This is what Kronk looks like from the victim's point of view...
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