A heavily revised version of the Stringer Mega Masterkey by Bruce LeedleLeedleLeedleLee that is specifically designed and tailor fit to act as an underbarrel attachment for the NSK-X blaster. This has a special grip portion that sits between the stringer's shell and the magwell of the NSK-X to give you some space to hold the blaster.
Alongside the grip, I made most of the tolerances between the parts tighter, leading to a more sturdy and less rattly blaster. I also added in a spring to the trigger so it doesn't rattle when not primed, made the trigger stick out less to reduce accidental firing, and added relief cuts to the shell for M4 nuts and bolts.
Assembly is the same as the original, but you will need 3x M4x25mm SHCS and 3x M4 nuts, and a short 8mm spring. You can find a suitable spring in the spring kit used in the NSK-X, which you can find at Home Depot. You will also need some 4mm bungee for this. I found that glue is sometimes required to keep the pins in place. You don't need to glue the grip to the slide, but you can if you want.
You don't need super high infill on most of these parts, but I suggest using at least 4 walls and 20% infill on everything. Print all files (except the optional muzzle device) the same way they are imported; you will need supports for the grip and the body. I suggest using tree supports. For the optional muzzle device, print however your slicer decides to arrange it.
NONE of my files are to be used or sold by Frontline Foam, by downloading my files, you agree that you are not Frontline Foam and/or related to Frontline Foam or Derrikk Sun.
The author remixed this model.
Heavily altered base design to fit the blaster, with revised tolerances, slightly different hardware, and a new grip portion.