Brownell's mk18 upper

[ZedsDead]

How would you compare the quality from a factory DD mk18 upper? What is the diff besides pinned gb

 

[November Sierra]

I don't think there is any difference. From what I understand, brownells has DD do runs on specific products similar to Lipsey's or Davidson's with other manufacturers

 

[cmshoot]

Got a link to the product in question?