1903 Colt Pocket Hammerless

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The 1903 Colt Pocket Hammerless represents a pivotal moment in American handgun design, embodying the innovative genius of John Moses Browning and setting the stage for modern concealed carry pistols. Introduced in the early 20th century, this remarkable firearm would become a favorite among businessmen, military officers, and even notorious criminals of the era.

Design and Mechanical Innovations

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Despite its name, the 1903 Colt Pocket Hammerless was not truly hammerless. The internal hammer was cleverly concealed within the slide, creating a smooth, snag-free profile that made it ideal for discreet carry. Weighing just 24 ounces and measuring 6.75 inches in length, the pistol was a marvel of compact engineering.

Key design features included:

  • Blowback semi-automatic operation
  • 8-round detachable magazine
  • Two safety mechanisms: a grip safety and a manual safety
  • Fixed front blade sight with a drift-adjustable rear sight

Historical Significance

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From 1903 to 1945, Colt produced approximately 570,000 of these pistols. Its popularity spanned multiple domains, finding favor with diverse groups:

  • U.S. Army general officers during World War II
  • Offices of Strategic Services (OSS) operatives
  • Traveling businessmen seeking personal protection
  • Law enforcement agencies, including the Shanghai Municipal Police

Notorious Reputation

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The 1903 Colt Pocket Hammerless gained a somewhat infamous reputation in the criminal underworld. Legendary figures like Al Capone and Bonnie Parker were known to carry these compact pistols. Its small size and reliability made it a favorite backup weapon for those operating both inside and outside the law.

Variants and Evolution

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The pistol went through several iterations, known as Types I through IV:

  • Type I (1903-1908): Longer 4-inch barrel, separate barrel bushing
  • Type II (1908-1910): Slightly shortened barrel
  • Type III (1910-1926): Integrated barrel bushing
  • Type IV: Added magazine disconnect safety

In 1908, Colt introduced a .380 ACP variant, expanding the pistol's appeal and stopping power.

Legacy

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The 1903 Colt Pocket Hammerless was more than just a firearm—it was a testament to John Browning’s design philosophy. Its sleek profile and innovative features influenced future handgun designs, including the legendary M1911 pistol. Today, collectors value these pistols between 200 for a shooter to 800 for pristine examples.

Who designed the 1903 Colt Pocket Hammerless?

Colt S 1903 Pocket Hammerless Type I Ii And Iii Variations
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John Moses Browning designed the pistol, creating a revolutionary concealed carry weapon for its time.

What caliber was the original 1903 model?

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The original 1903 model was chambered in .32 ACP (7.65mm Browning).

How many 1903 Pocket Hammerless pistols were produced?

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Approximately 570,000 pistols were manufactured between 1903 and 1945.