Fitment question, who woulda thought

[Barrett.50]

A $200 DiamondBack Armalite AR10 .308 Lower - Blem was on sale for $50 and I couldnt resist. Question now is, an upper receiver. I cannot find for the life of me an upper in the Armalite style (besides the $300 one from armalite.). My question is will the DB10 upper work on it or is there someone else making the Armalite pattern. Thanks all.

Edited May 25, 2019 by Barrett.50

[Lane]

Can't even get an AR-10 upper from Armalite for $300 if their website is up to date. They have been out of stock for a long time... I'm looking for one myself; but don't know much about mating that particular lower.