This can be interesting .
All my Sigs come new and appear as such . But when I get them home and white glove clean them . I often find carbon and crap in them. From factory firing.
So my take on this is odd.
Yes some guns are super clean and some seem dirty.
I have purchased over ten guns from Epps.
My Beretta 90-2 dirty , 2 Glocks clean , Ruger 1022 appeared clean but found carbon in the guts . M14 clean . SKS packed with crap.
You'll notice one thing there. You purchase lets say a Mossberg 590a1. They bring the box down open it .
This is your opportunity to inspect it, take another one , decline it .... whatever.
They give you a slip to pay for it at the cash . You return paid its yours .
This happens a Al flarities , Epps , Al simmons. Fishing World .
When that box opens and they look at you for your acceptance.
This is your quality control step .
If this happened and you bought it anyway its basically your fault .
BUT having said that. I have opened the box on a Mossberg 590a1 with the wacky trigger reset on it and I couldn't get it to fire at all and had to take another gun. It was broken in the box . I generally don't dry fire guns but this time I did. Finding this out at home. I would have been pissed off too.
If you buy a Ruger 1022 for pinking whom cares about this stuff youll mark it soon enough.
But if you buy a brand new ACR NR enhanced in black and are planing on collecting it. These cosmetic issues matter a lot .
Ordering stuff over the phone I ask them to pull it from stock , open the box , does it work ?
Then I say, "lets pretend we are family" , and for a moment "you care". Do you see anything wrong with it ? because I'm collecting it and I will send it back .
This is who I protect myself . I suggest you do the same. And wish you the best .