Hello all,
This is a fairly easy mod that you can do to your Doopy Doo's resin kit to make that front sight look more like a Sterling SMG. I cut out all of the inside resin of the the DD front sight. So I was just left with the sight guard. I then dremeled and needle filed out a notch onto the top of the front barrel. The notch length (from side to side) is an inch. The hardest part is getting the dovetail edges, but you probably wouldn't have to go that far either. You could just leave it a 90 degree angles. I used a sheet of 1.5mm styrene to create the site base. I cut out a strip from the sheet of styrene and then cut that up into 6 smaller pieces which I glued and stacked together. 3 for the piece that dovetails in and 3 for the little box that sits on top. After that I sanded it all down testing the fit into my barrel groove as I went. I haven't completely finished with it yet, so I'll add more pics as I complete it. I'm planning on adding a nail tip sight and a small grub screw on the side of the little box that sits on top.
The pic below shows the comparison of my sight with an actual Sterling SMG front sight. This is definitely do-able! It is a little intimidating cutting into a perfectly good barrel, but I figured if I messed up I'd would just fill it in with plastic putty and try again. I love the added realism!