[AlanSC]

Also looking at Diamondback firearms for their ARs (has anyone purchased from them)?

[willyd]

These guys can help you with AR 15 rifles: AR 15 Rifles You can ask their customer support anything on chat and they are very knowledgeable.

[chrisinoc]

“Also looking at Diamondback firearms for their ARs (has anyone purchased from them)?”

I bought a Diamondback DB-15 from a dealer in AZ in 2017 for $519. Fired many rounds through it, excellent quality.