The shotgun in question is a basic Remington 870 with an 18 1/2 inch barrel and full buttstock. I don't like the option of putting a pistol grip while I travel. What I need is a quiet, discreet case to hold a shotgun and extra ammo. I will use this case when I'm camping, traveling (road trip, YEAH!), and range use. It can't scream "TACTICAL" or "GUN". What are my options?