US Patent 10323893 Adapter for coupling ammunition magazines

An adapter for coupling ammunition magazines together comprises a structure formed to include a first interior pocket having an opening facing in a first direction, and a second interior pocket having an opening facing in a second direction opposite the first direction. The first interior pocket is configured to receive a base of a first magazine, while the second interior pocket is configured to receive a base of a second magazine. To enable receipt of a magazine base by a pocket and a tight, secure fit within the pocket, the first interior pocket has an interior dimension slightly less than a corresponding exterior dimension of the base of the first magazine, and the second interior pocket has an interior dimension slightly less than a corresponding exterior dimension of the base of the second magazine.