Colt M1878 Colt M1878 The Colt M1878 is a double-action revolver that was manufactured by Colt's Manufacturing Company from 1878 to 1907. It is often referred to as the "Frontier" or the "Double Action Army" revolver. A total of 51,210 Model 1878 revolvers were manufactured from 1878 to 1907, including 4,600 for the US Ordnance Department. These are known as the "Philippine" or "Alaskan" models. Samuel Colt experimented with double-action revolver systems, but he considered them to be unreliable. After Colt's patent expired in 1857, other manufacturers began producing double-action revolvers, but Colt's Manufacturing did not manufacture its own double-action revolver until
Colt Dragoon Revolver Second Government Contract, The "fluck Dragoon" was erroneously derived. The First Model Colt Dragoon Revolver production began in 1848, stemming from Colt's Second Government Contract. It has oval cylinder stops, a V-type mainspring, no wheel on the rear of the hammer, and a square back trigger guard. Colt produced about 7,000 first models between 1848 and 1850. The Second Model has rectangular cylinder notches. Until the no. 10,000 the V-shaped mainspring was standard and then replaced with a flat leaf mainspring and a wheel on the hammer at its bearing on the mainspring. All the Second Model Dragoons have the