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Colt's · Pistol

Colt Model 1903 Pocket Hammerless

Blowback (semi-automatic) · .32 ACP · introduced 1903

Also known as Colt M1903, Colt Pocket Hammerless, Colt .32 Pocket

About the Colt Model 1903 Pocket Hammerless

The Colt Model 1903 Pocket Hammerless is a slim, blowback-operated, single-action semi-automatic pistol designed by John Moses Browning and produced by Colt from 1903 to 1945. Despite its name, it does have a hammer - fully shrouded by the slide so the gun could be drawn and pocketed without snagging. Chambered in .32 ACP with an eight-round magazine, it became one of the most popular concealed-carry pistols of the early 20th century and was issued to US general officers as a badge-of-rank sidearm.

The Pocket Hammerless was the personal sidearm of choice for both bootleggers and the lawmen who chased them - Bonnie Parker reportedly carried one taped to her thigh, while it was also issued by the OSS to operatives parachuting into occupied Europe and remained the official badge-of-rank pistol for US general officers from 1942 until replaced by the Beretta M9 program.

Colt Model 1903 Pocket Hammerless specifications

General

Type
Pistol
Action
Blowback (semi-automatic)
Firing mechanism
Hammer-fired
Trigger
Single action
Calibres
.32 ACP
Magazine capacity
8 rounds
Magazine
Detachable box magazine

Dimensions

Barrel length
95 mm (3.7 in)
Overall length
171 mm (6.7 in)
Height
140 mm (5.5 in)
Width
30 mm (1.2 in)
Weight (empty)
0.68 kg (1.50 lb)
Weight (loaded)
0.77 kg (1.69 lb)

Barrel

Rifling twist
1:16 in (406 mm)
Rifling
Left hand
Grooves
6

Materials

Barrel
Steel
Receiver / frame
Steel
Slide
Steel
Stock
Wood
Finish
blued

Performance

Muzzle velocity (typical)
270 m/s (886 fps)
Muzzle energy (typical)
175 J (129 ft·lb)
Effective range
25 m

History

Introduced
1903
Discontinued
1945
Production status
Out of production
Country of origin
US
Designer
John Moses Browning

Features

  • Concealed hammer
  • Fixed sights
  • Drift adjustable rear sight
  • Low profile slide

Safety

  • Manual safety
  • Grip safety
  • Concealed hammer

Five major production types (I-V) were made over the gun's 42-year run. A scaled-up .380 ACP version was introduced in 1908 as the Model 1908 Pocket Hammerless.

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