The Meaning of ACP: What It Is and How To Use It

Do you know what the abbreviation ACP means? This article will provide you with all of the knowledge you need on the slang term ACP, including its definition, usage, and more!

Your writing, at its best

Compose bold, clear, mistake-free, writing with Grammarly's AI-powered writing assistant

What does the acronym ACP stand for?

According to Urban Dictionary and Ammunition To Go, the abbreviation ACP stands for Automatic Colt Pistol. The ACP was designed by John Browning for the Colt brand of semi-automatic pistols. The gun has straight-sided cartridges that have many different sizes of ammunition. There is a .25 ACP, .32 ACP, .38 ACP, .380 ACP, and .45 ACP.

The inventor of the ACP, John Moses Browning, was born in Utah in 1855 and built his first firearm at age 13 with tools from his father’s gun shop. As a young man, he began to sell his own gun designs, as well as a self-cocking single-shot rifle to the Winchester Repeating Arms company. By the late 1800s, Browning noticed that the grass would move when he fired his rifle, and had the idea to funnel the wasted energy into the firearm itself by cycling the next round into the chamber. He then developed a prototype for a self-loading pistol. By the end of the 1800s, the Colt company began to produce Browning’s handgun design. Throughout his life, Browning produced a long list of notable firearms, including numerous types of pistols, shotguns, rifles, and machine guns.

The most popular design of the ACP is the Colt .45 ACP Model 1911. This model has been used in numerous wars, including the Korean and Vietnam wars, as well as the Philippine-American war. The gun is even referenced in the song “Colt 45” also known as “Crazy Rap” and “Colt 45 and Two Zig-Zags” by Afroman, according to Metro Lyrics. This song references the Colt .45 ACP gu in the title as well as in the chorus, and is perhaps the most famous reference to this firearm. Even today, the 1911 and the Colt .45 ACP weapons are very popular and have a committed fan base. Even in the face of modern advancements, this is still a popular weapon. 

According to The Free Dictionary and Acronym Finder, the abbreviation ACP can also stand for a plethora of other things. These definitions are less common than using ACP to refer to a type of gun. Therefore, one should ensure that their context is clear before using one of these alternate definitions. Make sure that the reader will know exactly what you mean before using a different definition for ACP.

  • Advanced Care Paramedic
  • Allianz Capital Partners
  • Alliance for Cardiovascular Professionals
  • Acute Care Pavilion (various locations)
  • Allied Communications Protocol
  • Advance Care Planning
  • Advisory Committee
  • Animal Control Products Ltd.
  • Adjacent Channel Protection
  • Achieved Communication Performance (ARINC)
  • Alignment Control Panel
  • Acoustic Ceiling Panel
  • Aluminum Composite Panel
  • Acquisition Card Program
  • Arctic Coastal Plain (ecoregion; Alaska)
  • Associate Computing Professional
  • Approved Capital Programme (UK)
  • Association Canadienne des Pathologistes (Canadian Association of Pathologists)
  • Acute Care Practitioner
  • Acausal Connecting Principle (Jung)
  • Associate Cruise Program (Cruise Line International Association)
  • Association of Canadian Publishers
  • Automóvel Clube de Portugal (Portuguese: Automobile Club of Portugal)
  • Assistant Commissioner of Police
  • Access Communications Processor
  • Arms Control Proposal
  • Area Contingency Plans
  • Advanced Core Protocol
  • Air commander’s pointer
  • Army Cost Position
  • Association of Computer Professionals
  • All Computer Products
  • Association belge des Conseillers en Planification (French)
  • Acoustic Coupler
  • Alternate Command Plan
  • Adult Cabaret Peformer (classification)
  • Association Canadienne des Physiciens et Physiciennes
  • Analytical Cellular Pathology (journal)
  • Admin Control Panel
  • Aft Control Panel
  • Alternate Command Post
  • Applet Configuration Program
  • All-Campus Party (University of Wisconsin)
  • Active Identity Certified Professional
  • Area Characterization Plan
  • Automatic Correlation Partitioning
  • Army Capabilities Plan
  • Advanced Clinical Practice (various schools)
  • Airspace Control Plan
  • Association for Progressive Communications (various locations)
  • Armadyl Chest Plate (RuneScape item)
  • Admiralty Civil Police (UK)
  • Additional Commissioner of Police
  • Aviation Continuation Pay
  • Association of Croatian Patients
  • Analyse en Composante Principale
  • Aerial Check Point
  • Australian Centre for Photography
  • Alpine Club of Pakistan (Rawalpindi, Pakistan)
  • Association Canadienne des Paraplégiques (Canadian Paraplegic Association)
  • Advertising Copy Processor
  • Automotive Component Producer (Australia)
  • Atomic Commitment Protocol
  • Advertising and Consumer Psychology (conference)
  • Association for Child Psychoanalysis
  • Acyl-Carrier Protein
  • Ansi Code Page
  • Array Control Processor
  • American Centrifuge Project (uranium enrichment technology)
  • Advanced Common Processor
  • Advanced Control Processor (FLIR)
  • Application Certification Process
  • American Conservative Party (political group)
  • Average Case Performance
  • Auxiliary Control Panel
  • Administration Control Panel
  • Artemisia contre Paludisme (French: Artemisia against Malaria)
  • Automated Clearance Procedure (Pakistan customs)
  • Auxiliary Control Process
  • Archive Control Process
  • Advanced Communications Package
  • Attendant Call Panel
  • Adapter Configuration Profile
  • Agency Capital Plan
  • Airlift Command Post
  • Armoured Command Post
  • Association of Computer Professionals (UK)
  • Asian, Caribbean and Pacific (nations)
  • Archos Content Portal (software)
  • Arts Council of Pakistan
  • Adjustable Cheek Piece (weapons)
  • Anisotropic Conductive Paste
  • Army Campaign Plan
  • Armament Control Panel
  • Alarm Control Process (ITI)
  • Abort Ceiling Protocol
  • Association de Copropriétaires (French: Association of Co-Owners)
  • Airspace Control Procedure(s)
  • Access Control Panel
  • Access Control Point
  • Affordable Composites for Propulsion
  • Army of Club Penguin
  • Altavista Cached Pages
  • Air Charter Professionals (various locations)
  • AIDS Care Project (Boston, MA)
  • Accion Comunitaria del Peru
  • Army Civilian Personnel
  • Active Client Pages
  • Acceptance (Test) Procedure
  • Air Campaign Planning Tool
  • Annual Compliance Plan
  • Anti-Corruption Program (various locations)
  • Advanced Command Post
  • Atlantic City Police (New Jersey)
  • Assign Common Pool
  • Alberta Community Planner (Alberta, Canada)
  • Automated Change Processing
  • Adaptive Communications Processor
  • Audio Conferencing Provider
  • Average CPU (Central Processing Unit) Power (computing)

Overall, the acronym ACP most often stands for Automatic Colt Pistol. This is a very popular type of gun that was invented in the late 1800s by John Browning. This gun comes in a variety of different ammunition sizes, including the 25 ACP, .32 ACP, .38 ACP, .380 ACP, and .45 ACP. The Colt .45 is one of the most famous weapons ever created.