Patent ID: 7918153

Claim:
A belted machine gun ammunition magazine box comprising: a hollow housing configured to receive and store therein a vertically serpentined length of belted ammunition for selective outfeed to a machine gun through an opening in said hollow housing, belted ammunition received and stored within said hollow housing having vertically successive belt lengths each carrying a series of ammunition rounds with projectile end portions; and a support structure secured within the interior of said hollow housing and having a top side surface upon which at least end portions of the belt lengths within the housing may rest, said top side surface being laterally sloped, in a direction transverse to the lengths of the belt lengths, in a manner upwardly tilting at least some of the ammunition round projectile end portions in vertically successive ones of the belt lengths to inhibit potential feed jam-creating intermeshing of such projectile end portions, said support structure having a length, being length adjustable, and comprising two telescoped bracket sections each having a generally inverted U-shaped cross-section with a first vertical side wall having a first vertical width, a second vertical side wall having a second vertical width greater than said first vertical width, and a top wall extending between upper edges of said first and second vertical side walls, said top walls having upper surfaces defining said laterally sloped top side surface of said support structure, and means for releasably holding the telescoped bracket sections in a selected one of a plurality of length-adjusted orientations of said support structure.