I see that their advertised address is :
855 Village Center Drive Suite 342
St.Paul, MN 55127-3002
However, if you look up their web page filing address, you get:
AMERICAN GUN CRAFT
31205 FALCON AVE
STACY
MN
55079
UNITED STATES
612.716.2597
Which is "Promotion Management Center"
https://pmci.com