I decided to put a "real" barrel in it for the grenade launcher. I have some metal replica grenades, so I wanted the barrel to be the exact size for these to fit in. I ended up looking all over for the correct tubing, but had to settle for copper pipe that was the correct internal diamater, but was slightly thinner than I would have liked.
I had to cut out the hole in the shotgun part which was a bit tricky. It is in two parts so I could use a domed attachment on an electric drill to cut out the grove on each side. It took a while to get right but the barrel eventually fit the hole.
I have also glued the two main parts together (and screwed them together) and started filling in the gaps, screw holes etc. with Milliput:
Here is the grenade barrel construction:
At this point I thought I would add another bit of customisation :-)
I added a trigger for the grenade launcher, as the resin cast didn't have one. The first step involved destroying a toy cap gun. I salvaged the pieces I needed:
I then cut some groves and holes into the area where the trigger would go:
And then I put it together:
I sanded all the putty so that it would be ready for spraying:
After spraying with grey primer:
The shotgun part was ready, so I glued it and screwed it together, then filled in the gaps with putty:
This was then sprayed with primer:
The stock now needs adding to the shroud. This was also screwed in as well as glued:
Time for another custom made thing. I wanted to have the domed screws in the main shroud (the ones that would hold it together on a real one). I only had holes on my kit where they would go, so I made some out of putty. First I found a steel ball of the correct size and stuck some wet putty around half of it, then when that had set hard I stuck some wet putty into my mold so I ended up with a nice domed screw head. Then I stuck an Alan key into the top to finish it off:
Here is a pic of the whole thing sprayed with primer: