Magazine and firearm with positional adjustment of magazine spring
OwnerChristopher R. Castro, Dana D. Huffmaninventors
Life of this patent
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Abstract
Positional adjustment of a firearm magazine spring is supported by various instrumentalities. A magazine housing has therein a locking assembly carried on the magazine spring and cooperable with a sidewall of the housing to releasably lock the spring to the housing. Contact portions that engage the spring and permit application of compressive force to the spring are provided variously as part of: an apparatus separate from a firearm; a magazine well of a firearm; and a magazine insertion opening in a firearm that is separate from a magazine well of the firearm.
Claims20
An apparatus that facilitates compressing a spring in a firearm ammunition magazine prior to insertion of ammunition rounds into the firearm ammunition magazine, comprising:
- a base portion:
- and
- a contact portion protruding from said base portion for removable insertion into the firearm ammunition magazine via an opening in the firearm ammunition magazine;
- wherein said contact portion, when inserted into the firearm ammunition magazine, engages the spring and permits a force applied to one of said base portion and the firearm ammunition magazine to be transferred to the spring in a direction that causes compression of the spring.
A firearm apparatus for firing ammunition rounds loaded into a firing chamber thereof, comprising:
- means defining a well adapted to receive insertion of an ammunition magazine that contains a spring for forcibly urging ammunition rounds into said firing chamber when the ammunition magazine is inserted in said well;
- means defining a magazine insertion opening also adapted to receive insertion of the ammunition magazine;
- and
- a contact portion protruding into said magazine insertion opening;
- wherein, when the ammunition magazine is inserted in said magazine insertion opening, said contact portion is received in the ammunition magazine via an opening in the ammunition magazine, and wherein said contact portion, when received in the ammunition magazine, engages the spring in the ammunition magazine and permits a force applied to one of said firearm apparatus and the ammunition magazine to be transferred to the spring in a direction that causes compression of the spring.
A firearm apparatus for firing ammunition rounds loaded into a firing chamber thereof, comprising:
- means defining a well adapted to receive insertion of an ammunition magazine that contains a spring for forcibly urging ammunition rounds into said firing chamber when the ammunition magazine is inserted in said well;
- and
- a contact portion supported for movement into said well;
- wherein, when the ammunition magazine is inserted in said well while said contact portion is positioned in said well, said contact portion is received in the ammunition magazine via an opening in the ammunition magazine, and wherein said contact portion, when received in the ammunition magazine, engages the spring in the ammunition magazine and permits a force applied to one of said firearm apparatus and the ammunition magazine to be transferred to the spring in a direction that causes compression of the spring.
A magazine apparatus for delivering ammunition rounds into a firing chamber of a firearm, comprising:
- a housing configured for insertion into a magazine well of the firearm;
- a follower disposed and movably supported within said housing, said follower configured to support thereon a stack of ammunition rounds within said housing;
- a spring disposed within said housing for forcibly urging said follower and the stack of ammunition rounds toward the firing chamber when said housing is inserted in the magazine well;
- said housing having a pair of opposed sidewalls that face one another in a direction generally transverse to a compression direction of said spring;
- and
- a locking assembly carried on said spring and cooperable with one of said sidewalls to releasably lock said spring to said housing.
Dependencies are inferred from the claim text.