Ammunition Magazine Pocket Sunday January 24th, 2016 admin Ammunition Carrying Equipment, The Vietnam War, Post Vietnam War 8,002 views Each pocket can hold six 30-round magazine for M3/M3A1 sub-machine gun. Nylon replaced cotton canvas after 1972. Stock Number Reference: Pocket, Ammunition Magazine FSN: 8465-705-2438 NSN: 8465-00-705-2438 Assign Date: Unknown Cotton canvas pocket (left) and nylon pocket (right) post_vnvietnam_warammo_carrierbagog107