Ordnance – Automatic – Blow back breech block
Patent
1995-04-11
1996-03-26
Johnson, Stephen M.
Ordnance
Automatic
Blow back breech block
89163, 42 7502, F41A 2148
Patent
active
055011357
ABSTRACT:
The present invention pertains to a precision mechanism for guns, in which the barrel of the gun has a threaded end section and a cylindrical section on the outside, and in which an alignment bushing, which has an outer conical surface with a conicity corresponding to the conicity of the conical hole in the breech-block carriage, is mounted on the cylindrical section, and an adjustment ring intended for resting against the alignment bushing and the breechblock carriage and a threaded locking ring of the said striking ring are screwed onto the said threaded section.
REFERENCES:
patent: 2898693 (1959-08-01), Ruger
patent: 4896581 (1990-01-01), Cole
Fabrica d'Armi P. Beretta S.p.A.
Johnson Stephen M.
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