ACP

Automatic Colt Pistol.
Often used to refer to the .45ACP, designed by John Moses Browning.
ACP aslo refers to .25ACP, .32ACP, and .380AUTO.
"All I gots is misdemeenas an sum ACPs"
by .357ROB October 01, 2003
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2-2

.22 caliber.
A small rimfire cartridge, used for target shooting.
Three variations of .22 caliber exist: .22k (short), .22lr (long rifle), and .22WinMag (Winchester Magnum).
Sometimes used incorrectly to refer to a derringer, which is often chambered in a larger caliber.
"He didnt think I was packing, so I busted out my 2-2 and copped me a 187"
by .357ROB October 01, 2003
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357

Refers to two firearm calibers.
.357 Magnum, a popular revolver caliber. Effective within 1100 yards, deadly beyond that.
.357SIG. A new autopistol caliber. Bottled, high velocity. The best autopistol caliber available today.
".357 Magnum"
by .357ROB October 01, 2003
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9

A firearm chambered in 9mm. Properly used, it refers to the 9x19mm cartridge, aslo known as 9mm Parabelum or 9mm Luger. Though several other calibers are 9mm in diameter, they should not correctly be refered to as "nines".
9x17 AKA 9K AKA 9mm Kurtz AKA 9mm short is properly refered to in ghetto slang as a .380, referring to .380ACP the proper American nomenclature.
9x18 AKA 9mm Makarov is not commonly found in North America, and is therefore unavailable to most criminals.
9x21, is a more powerful variation of the 9x19 cartridge, and the two are not compatible in autopistols.
9x23, is a powerful cartridge, but is seldom found in cheap pistols, and therefore out of reach for most criminals.
"bust a nine in he ass"
"how you like that nine in yo spine?"
by .357ROB October 01, 2003
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