Colt 1878

The Colt M1878 is a double-action revolver that was manufactured by Colt's Manufacturing Company from 1878 until 1905 (some research suggests 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, including 4,600 for the US Ordnance Department. These are known as the "Philippine" or "Alaskan" models.[1]

Total production 51 000

The design of the Model 1878 was based on the Model 1877, which in turn was based heavily on the design of the earlier Colt Single Action Army revolver. A strut is added to connect the trigger movement to the hammer. The top of the trigger slips beyond the strut so that the hammer will stay in full cock if it is pulled back manually.

The 1878, was essentially the first heavy frame revolver specifically designed for larger calibres such as the 45 colt and 44-40.  The designed was submitted for testing to the US army however it was rejected. The design has the significant birds head grip, long barrel.

During 1885 Canada purchased 1001 Colt M1878’s in 45 Caliber, with 7-1/2” barrels, nickel plated, and rubber grips. Many of these revolvers are found with “M D” stamped on the left front of frame, along with an issue number on right hand side.

The mechanics were significantly different as there were no cylinder stops to prevent over rotation of the cylinder. Thew company retained the traditional gate feed and eject system.