The term 'Old West Guns' refers to the firearms used in the American Old West, which were typically single-action revolvers such as the Colt Single Action Army, also known as the Colt .45 or the Peacemaker. The Colt was a popular choice among cowboys and lawmen alike, and was produced from 1873 to 1941. It was the most widely used handgun of the American West, and was known for its reliability and accuracy.