The Remington Model 1875 Single Action Army (a.k.a. Improved Army or Frontier Army) was based upon the successful Remington Model 1858 with both revolvers having the same size, appearance, and the removable cylinder. The new 1875 Remington differed mainly from the older 1858 percussion model by having a bored through cylinder chambered for metallic cartridges. This was intended to compete with the Colt Peacemaker, introduced two years previously. Ordinary citizens and Old West lawmen alike recognized the sturdy quality of the new Remington revolvers. This design was followed by the Model 1888 and the Model 1890.