Primer tubes brackets for Extruded profile on Frankford Arsenal X-10

This is a remix for brackets/holders for primer tubes for extruded profiles on Frankford Arsenal X-10 progressive press.

There are few improvements/changes to original design:
1.) Brackets are compatible with much better Dillon tubes (and hornady and Mark 7 too), NOT with FA X-10 tubes
2.) Used only M4 screws from back side, with the M4 nut insert in front side part