71_Hour Achmed,
There was a thread on on the "Build It Yourself" section the other week that outlined the history of Nesard, Sendra, M&A and Model 1. I had always heard that they were related by blood, marriage, divorce etc. and that thread really cleared things up.
In a nutshell, Nesard was selling SBR kits with receivers, 11.5" barrels, 5.5" flash suppressors, and instructions of silver soldering and blind pinning.
Anyone else know more?