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.
Hands down, AR-15 rifles are great. The Daniel Defense DDM4 rifles are an amazing top shelf AR-15 option.
If you could only have one rifle to fulfill all my needs, what would it be? At first I thought my answer would be an AR-10, turns out it’s an AR-15.
Take a list of available cartridges, filter out those whose ballistic capabilities are insufficient for the application, and sort by preference. That’s how I match my cartridge to the hunt.
Every time I’ve attended a defensive firearms course, I have fun and come away reminded that I’ve got more work to do in order to increase my proficiency.