Back in the mid-1800s, Sam Colt was the first American manufacturer to open a factory in England. This move helped to grow his name in the international market. Over the course of a few years, Sam Colt eventually became the richest businessmen in the nation. Today, Colt continues to manufacture firearms for commercial, military, law enforcement, and international markets. At GunMag Warehouse, we proudly carry a great selection of Colt factory magazines. Some of our most popular Colt magazines include the Colt 1911, and Colt M4 22LR magazines - find these and more in our selection.