🇺🇸 119 Year old Colt 1903 Model M at the Range 💥😎 #collectibles Some years before John Browning invented the Colt 1911, he invented the Colt 1903 Pocket Hammerless Model. The 1903 Colt Model M, as it was known as, became a popular pistol for concealment as it was designed with a hammer inside the slide and frame. Its compact design required 8 rounds of the 7.65 Browning aka 32 ACP, another John Browning design. The Colt 1903 became popular with mobsters and some even saw use during WW1. The