ACP = Auto Colt Pistol

The legendary, and common, caliber, used in handguns of wide varieties. The .45acp cartridge was chambered in the legendary Colt M1911A1 handgun, used by american infantry during WWII.

.45acp is used even today, for such guns like the H&K Mark 23 SOCOM, and H&K's USP's. .45acp is even the caliber for the Tommygun used in WWII, and today it is used in H&K's UMP submachine gun.
".45acp is powerful too. ^_^"
-me
by Dave February 3, 2004
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An American discount-ammunition program dat allows lower-income citizens to enjoy hunting and target practice.
Signing up for da U.S. .45ACP is quick and easy in and of itself, and your cartridges can be shipped immediately after approval; you would still need to endure dat pesky 30-day waiting period, though, before you could legally obtain a handgun wif which to actually shoot off said wadcutter and/or hollowpoint rounds!
by QuacksO August 24, 2022
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