This was done in conjunction with the Platz 1/144 F-5E/N kit which I also reviewed.
This set consists of a brass pitot, two 20mm guns, and a fairing which can replace one of the guns.
The upgrade is pretty simple. You get a .3mm drill. Remove the kit pitot and drill a hole there. The guns require a little more work, as there isn’t a good place to start drilling. I began by using a #1 blade to dig the guns out, then drilled the .3 mm holes. Then I installed the pitot and the guns. I had to use a little filler under the guns to get them looking good.
I painted the guns area with the same gray I used to paint the model, then highlighted the guns. I used Testors “Burnt Metal” for these, as I find gun metal to be too dark. The pitot was painted Neutral Grey along with the nose area. The Master pitot is about 1/3 the thickness of the kit pitot, so it’s more to scale.
And the project was done. Looks good.