Best upper. Without modifications.

Almost all quality upper “mfg’s” buy an unfinished forged billet or cast billets from primarily 8 vendors (though there are at least 16 or more out there). They either finish the blanks in house or have it done by a third part machine shop. The general ru

I agree the Daniel Defense DDM4v9 Upper is one of the best out of the box

Brian, I would get the Daniel Defense DDM4v9 Upper and not look back. You will not have to replace/upgrade a single thing on the DDM4v9 Upper.