Apples and Oranges. AKs are classified as assault carbines. FALs / L1A1s are classified as Light Machine Guns / Battle Rifles. AKs are spray and pray, hence the reason that large capacity AK drum magazines are so popular. FALs have the ability to reach out and touch the enemy.
My buddy's dad carried a BAR in Aachen, the first German city entered by US troops in 1944. (I recall Stephen Ambrose saying in a lecture series, that's where American commanders learned the most important lesson about urban warfare: Don't do it.)The BAR my father was issued