There is only one real AR type and it's MADE by Colt
NRA LIFE (1974)
Since 1971 my Colt ARs(thru thousands of rds) some
FA--and no parts failures . No spares required.
I had a commission/USNR from 71-77 but never consider myself a Veteran.My Dad and his four
brothers/USMC /WW2,Korea,Vietnam. Their Father US Army WW1. They were Veterans.
The problem is HEADSPACE between the ears!(Scott Duff)