I have a few D2 bodies for sale, currently raw but custom anodizing and or full builds are available.
https://lukescustoms.com/deflator.html
A few changes were made to the original design shown below
This design incorporates a hidden sear pin and hidden detent. You can also run a lp airline through the body (From the foregrip slot direct to T-Rex)
Here's a few customer builds with the original design