Firearms – With adjustable head space – By reaming
Patent
1981-05-06
1983-09-27
Jordan, Charles T.
Firearms
With adjustable head space
By reaming
89 14C, F41G 102
Patent
active
044060785
ABSTRACT:
An improved sight rib for firearm leveling which is attachable to firearm barrels having a top located bore vent, said sight rib including a housing having one or more upwardly extending apertures in fluid communication with the bore vent. The rib preferably includes an expansion chamber in communication with the bore vent from which a plurality of oppositely disposed backwardly and upwardly inclined apertures extend. By use of an appropriate sight rib, a firearm may be fine-tuned to overcome recoil.
REFERENCES:
patent: 2916970 (1959-12-01), Mutter
patent: 3808943 (1974-05-01), Kelly
patent: 4008538 (1977-02-01), Center
Horton Paul F.
Jordan Charles T.
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