International Harvester

[Bob Seijas]

Line Material Company, Birmingham, Alabama. My personal theory is that the R stands for Rifle. Their contract was initially for Carbine barrels but was changed to M1 Rifle before any were made. I theorize that their code would have been LMC but became LMR after the contract was changed. It is pure speculation on my part. They were absorbed into the Power Systems Division of McGraw Edison.