Hello hello! Longtime handgun/shotgun owner looking to pick up a first time AR. I have done some essential googling and simple forum searching, and am looking to buy an AR. I have started to compile an opinion on what I should buy. I am of the mind to get something whole and learning the system with the open mind, and in the future, to piece together a rifle once I figure out what is what. My main uses will be stationary target shooting, occasional varmit hunting and eventually moving into three gun competition. I have about $1500 to spend. I am eyeing the Colt LE6920, but am open to suggestion. Anyone have superior forum searching skills that might point me to threads discussing first time buyer advice? Any others have their own opinions on what might be the best first time rifle to pick up? Thank you so much for your responses!