So I was building like I dont know my 5th or 6th gun and i was like. Let's build a ar-10 this time around. Did some searching and it took me a while to find a combo that was in a good price range. Then I happen to come across Tom's Tactical and found the this 308. Ar10 BCG+ Charging handle. Had this combo for a while now and have shot 300 rounds and no issue. So a good price and performance for 308.. good buy and would recommend.