Rate my first Grendel build list..

[HickLife]

I would love to see a side beside test of the upper against a standard ar upper like an aero, will it actually give you more accuracy and is the added weight worth it(I'm far from the oz=lbs lbs=pain club just curious)? It's your money and you can spend it how you want but I would go for aero upper and lowers and a regular gas tube. People generally use the adjustable gas blocks so the buffer doesn't slam back so hard, which is fine if you are shooting multiple different rounds in different environments, it can help with faster follow up shots though, but I wouldn’t worry about it. Those are great looking uppers and lowers though it's gonna look great.