The Nashville Arsenal, and the 6th Mississippi, were among the first recipients of imported British military goods.  The Nashville Arsenal files shows the accoutrements to have been white buff leather Line equipment.  Made by Merrick's Custom Leather, this set includes all of the British Group Buy items--a waist belt, cartridge box, cartridge box belt, cap pocket, ball bag with oiler, scabbard and frog, and a gun sling, at a $100 discount.

Complete British Accoutrement Set - Shiloh