M29 Smiths are the berries, no doubt.
I live in the south Texas borderlands, and out in the ranch country it's not uncommon to run afoul of substantial groups of illegal aliens (wetbacks, for the legalese impaired). I've personally encountered groups of more than 30 on our family ranch. Usually such groups are benign, but not always, and if things go bad, that's a handful for one man to deal with. A tuned-up P-12 Para-Ordnance on my hip and a couple extra clips on my belt serve to make such encounters a little less awkward-feeling. Nothing like three dozen fat-rounds at your immediate disposal to take the edge off your nerves.
Different strokes, I guess...