M60 far inferior to FN MAG AK trounced M14s when they were both adopted around the same time No mention of PK or SVD
Also an OG M16A1/A2 is not modular until you throw the SOPMOD blocs or A3/A4 revision upgrades - a better like comparison would be AK12 or a tricked out 100 series. Just dumb luck that AR could ditch the plastic handuards and front cap to use the barrel nut for ff rails, Stoner/Sullivan weren’t wizzards