Glockster19.......I don't know what kind of AR you should buy; however, I own both a S&W M&P 15 and a S&W M&P 15T. They are my first AR's....both purchased within the last two weeks.....15 cost 950.....15T cost 1324. I did the typical new gun cleaning and sighted in each one at a 125 yard distance cleaning barrels after every 5 shots (20 + -) for each. On the 15T I use an EOTech sight. On the 15 I use stock sights. This past weekend my son and I shot just over 500 rounds total between both guns. Each functioned perfectly....no gun glitches. We used three different ammo brands and had two FTF with one of the brands....primer dented no bang. My age is 63, my son is 32 and active military USCG, MSST. Offhand he was able to ring our 9" steel plate every time at 100 yds....I could hit it 75% of the time with either gun...open or EOTech sights. With a bipod, resting on a fence rail, he was shooting 2.7 inch groups with EOTech at 100 yds......I shot 3.5's..not so good. I posted a photo of these guns a few days ago. Hope this backyard report helps. BTW the "not so good" refers to my shooting, not the 15's.