Breech Bolt and Lock Assembly.

Abstract

A breech bolt and lock assembly for a gas-operated firearm is provided. The assembly is contained within a bolt housing which in turn contains a bolt operating spring and a two-part bolt mechanism. The two-part bolt has a cylindrical outer bolt which encloses the inner bolt and firing pin. A second spring operates the firing pin. During firing, the inertia of the firing pin and inner bolt prevents the sudden rearward movement of the discharging cartridge. There is no other locking of the breech, however, the weight of the inner bolt and pin assembly may be changed to accommodate different propellant loads. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Aug 14, 1995
Accession Number
ADD017685

Entities

People

  • Michael Canaday

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Assembly
  • Automatic Weapons
  • Cartridge Cases
  • Construction
  • Energetic Materials
  • Fabrication
  • Firing Pins
  • Impact Acceleration
  • Inventions
  • Materials
  • Military Research
  • Patent Applications
  • Patents
  • Propellants
  • Rocket Launchers
  • Weapons

Readers

  • Electrical Engineering
  • ballistics.