A device implementable on a firearm includes a magazine extension housing, a pocket clip and a securing device. The magazine extension housing is attachable to a bottom opening of a magazine well of a magazine that is implementable on the firearm. The securing device is configured to secure the pocket clip to the magazine extension housing.

A device implementable on a firearm includes a magazine extension housing, a pocket clip and a securing device. The magazine extension housing is attachable to a bottom opening of a magazine well of a magazine that is implementable on the firearm. The securing device is configured to secure the pocket clip to the magazine extension housing.

A firearm as disclosures herein comprises a main receiver body, a barrel, a breech bolt structure, a buffer assembly, a trigger group assembly, a bolt catch and at least one of an auto-sear, a magazine adapter and a breech bolt anti-rotation structure. The main receiver body is preferably of a monolithic construction whereby the handguard and breech bolt carrying bore can be manufactured from a single piece of material. The auto-sear is tripped by engagement with a buffer of the buffer assembly. The magazine adapter has an exterior surface structure engaged with a mating interior surface structure of a magazine well space of the main receiver body. A distal end portion of the breech bolt anti-rotation structure is engageable by the buffer for limiting forward travel of the buffer when the barrel is detached from the main receiver body.

A firearm as disclosures herein comprises a main receiver body, a barrel, a breech bolt structure, a buffer assembly, a trigger group assembly, a bolt catch and at least one of an auto-sear, a magazine adapter and a breech bolt anti-rotation structure. The main receiver body is preferably of a monolithic construction whereby the handguard and breech bolt carrying bore can be manufactured from a single piece of material. The auto-sear is tripped by engagement with a buffer of the buffer assembly. The magazine adapter has an exterior surface structure engaged with a mating interior surface structure of a magazine well space of the main receiver body. A distal end portion of the breech bolt anti-rotation structure is engageable by the buffer for limiting forward travel of the buffer when the barrel is detached from the main receiver body.

The present invention relates to a magazine extension which has been developed for use in semi-automatic and pump-action hunting rifles and which increases the magazine capacity without losing spring force by easily connecting the end of the rifle to the magazine tube.

The present disclosure relates to a modular firearm frame adapter that aid in making compatible a slide associated with a first firearm and a frame associated with a second firearm. The compatibility is such that the slide associated with a first firearm and a magazine associated with a second firearm being able to function properly as a single integrated firearm. This system includes an adapter, and one or more adapter elements that aids allowing the modular firearm to function properly.

The present disclosure relates to a modular firearm frame adapter that aid in making compatible a slide associated with a first firearm and a frame associated with a second firearm. The compatibility is such that the slide associated with a first firearm and a magazine associated with a second firearm being able to function properly as a single integrated firearm. This system includes an adapter, and one or more adapter elements that aids allowing the modular firearm to function properly.

A spring for a firearm magazine includes a top attachment leg, a plurality of upper coils connected to the top attachment leg, a plurality of intermediate coils below the upper coils, and a bottom attachment leg below the plurality of intermediate coils. The upper coils are sized and shaped to nest within the intermediate coils when the spring is fully compressed, reducing the solid height of the spring. In some embodiments, at least two complete upper coils and/or at least two complete lower coils nest within intermediate coils. In one example, at least some coils have a rectangular coil shape. The spring can be configured for use in a handgun magazine or a rifle magazine, for example. A handgun magazine and a magazine components kit including the spring are also disclosed.

A device for loading a plurality of ammunition rounds or cartridges, containing a rim, groove, or flange, of non-determined size or into a firearm magazine of a non-determined capacity by means of a magazine adapter, in one or more hand strokes. The main chassis, or cartridge retainer, may be asymmetric in design allowing for ambidextrous operation and accessory expansion.

A device for loading a plurality of ammunition rounds or cartridges, containing a rim, groove, or flange, of non-determined size or into a firearm magazine of a non-determined capacity by means of a magazine adapter, in one or more hand strokes. The main chassis, or cartridge retainer, may be asymmetric in design allowing for ambidextrous operation and accessory expansion.