Hey all, I'm saving for an AR15 upper. I'm debating whether to get a complete upper or build one (I've built them before). Requirements: 16" in 5.56x45 Hammer Forged barrel Adjustable gas system (will be used with 762SDN6 suppressor) The two options I'm looking at: Sig 516 or a build using this Noveske barrel with switchblock (total cost ~$1100). If I go with the sig I'll have to get an AAC muzzle device, so the cost is about even. I was wondering if anyone has an opinion on either of my choices. I'm really looking for experience with the Sig more than anything else. I know that you can't go wrong with Noveske.