I was glancing through a recent shipment of firearms and noticed a rifle sized box with Diamondback Firearms' Logo on it. This caught me off guard because I was only aware of DB manufacturing pistols. I pulled the box from the rest and opened it to see an AR-15 rifle colored in what most would consider Tan or Flat Dark Earth. I immediately navigated to DB's Website to find some details on the rifle but found their description extremely lacking (as in there were no details). Widening my search I found Guns Gear and Holsters had run an article about rumors of this AR with a street price around $900. It appears that the rifle is completely manufactured in house at DB.
Details I've been able to drudge up:
Diamondback DB-15 FDE 5.56mm
Barrel: 16" Chrome Moly 4140 M4 Contour 1:9
Rail: DB Modular Rail
Furniture: Tapco Butt-stock and Pistol Grip
Receivers: Forged 7075 T6 Aluminium
I only had a few minutes of contact with this rifle so didn't even have a chance to disassemble or inspect further.