One Day...
AH elite
As to the French inventions, look no further than the stoner ar15 bolt, almost an exact copy of a French bolt from, I believe, the 1920’s
You are correct
The AR10/AR15 primary operating principles (direct gas impingement and rotating bolt head actuated by a cam cut in the bolt body) come directly from the first semi auto combat rifle adopted by a military, the RSC 17 semi automatic rifle (1917), developed and adopted, you guessed it, by the French
Close to 100,000 were issued before WW I ended.