In the "Zombie Ammuntion" thread, I waxed on about what my perfect zombie *** would be; a week ago, I thought it would be a box-magazine-fed, slide-action .30 Carbine. But that was before I SAW THE LIGHT. And the LIGHT did shine upon my face, and the DARKNESS was lifted, and the LIGHT was in the form of this.
Available as a bare upper receiver, all the rail-space a fella could want for mounting lights and sights and pointy stabby things, American-made and actually affordable. Chambered for the 5.7x28mm cartridge, which betters the .22WMR by a good margin-- it's essentially a modern .22 Hornet. 50-round magazines are standard, and best of all, it has ammunition and magazine commonality with a very good sidearm, the FN P-90.
So here we have a package that packs light, shoots reliable -the AR-57 is a straight blowback design-, is quite accurate, has plenty of punch out to reasonable range, and with full mags in your ***** and both sidearms (you really need two) you've got 90 rounds available before you need to change a magazine. The only fly in the ointment is that ammo is a little on the spendy side, but I've got to believe after the Zombie Apocalypse, money isn't going to matter much.
I'm still going to want a good shortsword for when things get real down and dirty-- and did you know that using an adjustable cup from a bottom bracket, you can screw two freewheels together to make something that very closely resembles a flail head?
For that matter, I can't believe I'm the only one who's ever hefted a drive-side crank and thought, "Hmmmmm..." Although I'd want to bolt it to a hatchet handle, and use a steel ring for strength. This might just be the best use for leftover cottered cranks, come to think of it!