Aero Precision M4E1 Upper – Threaded or Enhanced?

[Robert]

What’s the more popular choice for the aero upper? I like the enhanced option where it’s all one piece, as i want the best fit and least amount of play/rattle and i hear this is great for that, but proprietary so hand rails are limited. $20-$30 makes no difference to me. Any other pros/cons? This is my first build and i have an Aero m4e1 stripped lower right now.
I also don’t want a forward assist & i hear aero is going to start making those in March, any truth to that? If so i will definitely wait if that’s the case.

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