Bits and pieces but the Stg was the first that had all the items I mentioned. Soviet AV’s were recoil operated.
>>>Soviet AVs were recoil operated.<<<
LOL. Have you ever seen one?:)
And I actually fired these guns.
That makes STG a somehow pioneer weapon is a combination of select-fire and a use of intermediate cartridge.
It made an entire concept of “assault rifle” any viable for the first time.
All the elements of it’s design were actually invented and put to use earlier by both US and Soviets.