The ATS Double M4 Stacked Shingle came from requests from units for a hard-sewn shingle style pouch that held two M4/M16 magazines.
Stacking shingles has become a very common practice, and the Double M4 Stacked Shingle simplifies that process.
Each magazine is held in place by its own bungee retention strap, and each pocket has its own drain-hole grommet.
The pouch measures about five inches long and is about three inches (two channels) wide.
From the back panel to the face, the pouch is about 2 inches deep.