The Colt New Line was a single action pocket revolver introduced by the Colt's Patent Fire Arms Manufacturing Company in 1873. Two years after the Colt House Revolver (1871), a year after the Colt Open Top (1872) and almost simultaneously alongside the Colt Peacemaker (1873), the Colt New Line was one of the first metallic cartridge rear-loading revolvers manufactured by Colt's. It was, alongside the Colt Open Top Pocket Model Revolver (1871), one of the first pocket metallic cartridge revolvers made by the company.