M1911
Semi-automatic service pistol
John Browning’s recoil-operated .45-calibre pistol served as the principal U.S. military sidearm for more than seven decades.
Introduced1911
SpeedSemi-automatic
RangeApprox. 50 m effective
CrewIndividual weapon
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Platform profile
Technical overview
- Manufacturer
- Colt and licensed manufacturers
- Primary role
- Semi-automatic service pistol
- Dimensions
- 216 mm length · approx. 1.1 kg
- Operators
- United States and numerous international users
- Variants
- M1911 · M1911A1 · modern derivatives
- Operational status
- Limited service · civilian production
Complete platform dossier
M1911 details
Identity
- Full name
- M1911
- Type
- Semi-automatic service pistol
- Designer / lineage
- John Moses Browning
- Country of origin
- United States
- Entered service
- 1911–present in varying roles
- Calibre
- .45 ACP
Operational roles
- Military sidearm
- Personal defence
- Competition and ceremonial use
Variants
- M1911
- Original military pattern
- M1911A1
- 1920s ergonomic and detail revisions
- Modern derivatives
- Commercial and tactical configurations
Performance
- Effective range
- Approx. 50 m effective
- Cyclic / practical rate
- Semi-automatic
- Overall dimensions
- 216 mm length · approx. 1.1 kg
Operating mechanism
- Short-recoil operated, single action
Design features
- Single-action trigger
- Short-recoil tilting barrel
- Grip and manual thumb safeties
- Single-stack detachable magazine
Sighting and handling
- Iron sights supplied as standard
- Handling and sight arrangement vary by production model and service configuration
Ammunition and feed
- Cartridge
- .45 ACP
- Feed system
- 7-round detachable box magazine; later magazines vary
- Fire control
- Varies by model; see platform role and variant
Core dimensions
- Barrel length
- 127 mm
- Overall size
- 216 mm length · approx. 1.1 kg
Strengths
- Durable, proven design
- Crisp single-action trigger
- Long service history and extensive parts ecosystem
Limitations
- Low standard capacity by modern service-pistol standards
- Heavy all-steel construction
- Single-action manual of arms requires training
Operators and customers
United Statesnumerous international users
Interesting facts
- It was the standard U.S. military sidearm from 1911 until the 1980s.
- The basic design remains in widespread commercial production.