^^^same here not that code but something like bradrocks on a spikes upper. I guess its just a salespersons name and them making themselves seem cool Idk..
Here's a list of stuff that covered with the code "gundeals" but they keep selling out of the stuff on the list and it's hard to keep up with it. It was just updated about a week ago. https://docs.google.com/View?id=dczrbmm9_8g5hwgzgz
Note: No ammo discounts on the list. The last discount I remember on ammo was Blackfriday I think.