-
Lady Luck was kind.
-
Try the weapons vendor. I got my AR-3 from him. He usually has a green to sell.
-
Lol... yeah, I've gotten some pretty cool Pulse and Scout Rifles, but never any cool Auto Rifles like this one...
-
The only Assault Rifle whose performance comes close is the Galahad, but I haven't seen any Uncommon Variants for it. They're on opposite sides of the spectrum, with the Shingen being Mid-Long Range with accuracy and fire rate, and the Galahad Short-Mid range with an emphasis on Impact.