Clip Joint  Playing with guns at Crossroads of the West  I've
got one for you: Two guys in wraparound shades with "Wetback
Power" gang tattoos saunter past a Maricopa County sheriff's
volunteer posse member. Both are openly armed with pistols and
combat shotguns.  The weekend cop looks 'em over and says, "Have
a nice Sunday, guys." It was all part of the gun show April 10
and 11 at Crossroads of the West--a.k.a. "The Big One"--the
annual cash-and-carry firearms megamart that occupies two
exposition buildings and two tents on the Arizona State
Fairgrounds.  I spent most of my weekend's daylight hours at
Crossroads of the West, looking for a hot deal on a gently used,
high-grade .380-caliber semiautomatic.  Some deride the .380 as
a chick's gun. I say when it comes to urban self-defense, bag
Dirty Harry and his clumsy, .44 Magnum penis extender. Think
speed, style, stealth. James Bond packs a .380. You sacrifice a
little stopping power, sure, but a good Colt .380 holds 10
hollow-point rounds. Forty feet or clos