The Colt 1911A1 pattern handgun is very popular in IPSC, IDPA and NRA bullseye competition. There are more than a dozen manufacturers and a whole cottage industry of parts manufacturers.

Factory pistols are available in many configurations and calibres such as: .45ACP, 9mm Luger, 9x23mm, .38 Super, 10mm, .40 S&W, .45 Super, .400 Corbon. Parts are available to convert a 1911A1 to the above calibres as well as: .22lr, 9x21mm, .41AE, .41 Avenger, and .460 Rowland.

Manufacturers of 1911A1 pistols

• Briley
• Colt - Official Colt Firearms site.
• Entreprise Arms
• Kimber - rifles and 1911 pistols.
• Les Baer Custom - 1911 pistol maker
• Lissner Barrels - barrels for 1911 pistols
• Para-Ordnance Mfg. - the best buy for Canadians
• Para-Ordnance Pro-Shop - Para-Ordnance Pro-Shop (located in Pennsylvania).
• Safari Arms/Olympic Arms - custom 1911 pistols.
• Smith & Wesson - even S&W is not making a 1911!
• Springfield Armory
• STI International - STI 1911 type pistols.
• SVI - Strayer Voigt 1911 type pistols.
• Wilson Combat - complete 1911 pistols and parts primarily for 1911A1 type pistols.

Gun Parts, Accessories and Gunsmiths

• Ace Custom 45's Inc (TX) - home of .45 Super pistol
• ARMCO Machine & Plating - a custom gunsmith in British Columbia
• Arredondo Accessories (CA)
• Brazos Custom Gunworks (TX) - pistolsmith.
• Chip McCormick - parts for 1911 pistols.
• Clark Custom Guns - gunsmith and gun parts.
• Cylinder & Slide
• Dark International Trading Company - Ontario gun dealer and custom pistolsmith
• Dawson Precision (TX)
• Denny's Shooters Supply - a source for everything.
• Dillon Precision - ammunition reloading equipment.
• Dlask Arms - IPSC gunsmith in B.C.
• Ed Brown Products - parts primarily for 1911A1 type pistols.
• Evolution Gun Works - EGW (PA)
• Guncraft Sports - parts primarily for Colt 1911A1 type pistols.
• Heinie Specialty Products - pistolsmith.
• Marstar - Canadian firearms dealer
• Mec-Gar - sights and magazines.
• Milarm Co. - firearms and accessories.
• Millennium Custom
• Millett - sights and optics.
• Nowlin Mfg - parts for 1911 pistols.
• Pachmayr< - Pachmayr handgun grips.
• Pearce Grip Inc - grips for 1911 pistols.
• Practical Shooting Supplies - parts for 1911 pistols and IPSC gear.
• Rock River Arms (IL) - 1911 pistols & parts
• Shooters Connection - parts for 1911 pistols and IPSC gear.

Miscellaneous 1911 Sites

• 
• Colt - Colt Firearms - unofficial site.
• Colt Collectors Association
• .45 page
• 1911 Discussion Forum
• 1911 Heaven
• 1911 Society