This should help!

Three pcs, so that the square drop block hole doesn't have to be broached or wire cut on an EDM.

I can make this at home with an end mill or a key cutter.

All my guns [Wildcatting] keeps getting bigger, now I need more Guns.

I have most of the steel, so it is time to use some of the 4140 up.

Once that I get the design and process all sorted out, then it will be time to make some chips.