Colt Walker of Texas had been the major purchaser of the early Paterson Holster Pistol (No. 5 model), a five shot cal .36 revolver, and Samuel Walker became familiar with it during his service as a Texas Ranger. In 1847, Walker was engaged in the Mexican-American War as a captain in the United States Mounted Rifles. He approached Colt, requesting a large revolver to replace the single-shot Aston Johnson holster pistols then in use. The desired .44-.45 caliber revolver would be carried in saddle mounted holsters and would be large enough to dispatch horses as well as enemy soldiers. The Colt Walker
Colt Buntline target sights, chambered in .45 Colt. The 1873 Buntline Target is an Italian 6-shot single-action revolver chambered for the .357 Magnum or the .45 Colt cartridges, manufactured by A. Uberti, Srl. The revolver has an 18-inch barrel with no muzzle brake or ports. It comes with a walnut grip and a dark blue finish. The Navy Arms Frontier Buntline Model is a 6-shot single-action revolver chambered for the .357 Magnum or the .45 Colt cartridges, manufactured for Navy Arms. The revolver has a 16.5-inch barrel with no muzzle brake or ports. It comes with a walnut grip and a detachable