I have found that a few pieces of LEGO™ can be used as a base for scratch building the 6-circuit pinhousing Mate-N-Lok 163035-9 used in the ESB EE-3 rifle. These are the building instructions:
And the pieces:
1 x BRICK 2X3 – Black
6 x ROUND BRICK 1X1 – Black
2 x TECHNIC 3M BEAM – Black
Here is an image with the measurements in mm. Lego first, then the Mate-N-Lok measurements within parentheses (datasheet found by Googling). I think they match pretty good.
You would need to putty some gaps and attach the wings. Note however that the bottom view might need some heavy modification as well. The total cost of the Legos for one pinhouse (you need four) is about one dollar. A similar price as the original part (which I haven’t found in black).
The six Round Bricks can be replaced by two Technic 3M Beams, then you probably shall glue the next layer of beams on top.
You might have the pieces at home already!