The “universal” in the designation indicated that it held 2x M14 rifle 20-rd magazines, 4x M16 rifle 20-rd magazines, 4x M2 carbine 30-rd magazines, a bandoleer of 6x 8-rd M1 rifle clips, 8x M1 clips without bandoleer, 2x BAR or Australian L1A1 rifle 20-rd magazines (tight fit), 24x 12-gauge shotgun shells, 3x 40mm grenades (two nose down, one horizontally on top), or 3x hand grenades internally. M16 magazines were too short to conveniently withdraw, so soldiers inserted a field dressing or folded sock underneath to raise them. Some pouches were too tight and held only three magazines.
M16 20-rounders are irritating if you forget or forgo a sock or dressing in the bottom of the pouch, and are real pain if you stuff the requisite 4 magazines in there. Don't forget to stagger them so there's something to grab! Two of my pouches fit them easily, one is very tight.
The carbine clips magazines were easy.
In most of these alternate uses of the universal small arms ammunition pouch, access is kind of an issue.
For the Garand clips, the four clips in the bottom are kinda fiddly to reach.
Three 40x46mm grenades
Three hand-grenades.
One!
Two!
Three! BWAH HA HA HA HA


























