AK-47s get a bad rap as inaccurate and unreliable weapons. While I don’t have broad experience with the platform, I wasn’t able to detect an ounce of truth to that reputation while getting in some trigger time with the GF5 from Palmetto State Armory.
Is it possible that an AR-15, given multiple upper receivers, can be a single rifle that is versatile enough to cover all possible needs? I think it’s possible depending on one’s individual needs. One thing is certain, there are a plethora of options.