The cotton M16A1 ammunition case was shorter than the universal pouch and was capable of accommodating four 20rd magazines for the M16 rifle. The pouch attached to the pistol belt via two slide keepers and had a supporting strap that clipped to the metal loop on the suspenders. In common with the majority of ammunition cases it had strips on both sides for attaching hand grenades.
It is a shorter version of the universal pouch, made of cotton canvas to better fit the smaller 20-round magazines compared to the standard M14 magazines.

This is the standard magazine pouch used by the US Army in Korea & Vietnam.

FSN 8465-935-4871

These are from the 1960's. and came to us via South Korea

Please note: as these are military surplus and may have wear and tear from use by the military.  They may have stains and repairs, but these are all part and parcel of military surplus with genuine patina.  There will be some colour, quality and style variation to the image shown as every item is different.