The invention relates to guns and is aimed at enhancing the ergonomics of the firearm, having the magazine, located eccentrically relative to the vertical plane.

These results are achieved by the fact that the receiver contains an eccentric thickening in which the receptacle of the magazine is located and the thickening itself has bevels, which makes the outline of the receiver smooth, thereby excluding the possibility of the receptacle of the magazine catching on surrounding objects.

The invention relates to guns and is aimed at enhancing the ergonomics of the firearm, having the magazine, located eccentrically relative to the vertical plane.

These results are achieved by the fact that the receiver contains an eccentric thickening in which the receptacle of the magazine is located and the thickening itself has bevels, which makes the outline of the receiver smooth, thereby excluding the possibility of the receptacle of the magazine catching on surrounding objects.

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.

Firearms with combined bolt catch and ejector have a bolt defining a bolt face configured to receive a case head of a cartridge, a bolt catch connected to a frame and movable between a first operational position in which bolt reciprocation forward from the rear position is enabled, and a second restraining position in which a portion of the bolt catch restrains the bolt in the rear position, and the bolt catch having an ejector surface portion positioned clear of the bolt face when the bolt catch is in the first operational position and in registration with a portion of the bolt face when the bolt catch is in the second restraining position such that a case head received by the bolt face strikes the ejector surface portion upon movement of the bolt from the forward to the rearward position when the bolt catch is in the second restraining position.

The invention relates to handguns (mainly sports and hunting) and is a magazine-fed firearm in which the magazine is located above the trigger and at an angle to the vertical plane. This solution allows to reduce the length of the firearm, while not complicating the process of installing the magazine.

The invention relates to handguns (mainly sports and hunting) and is a magazine-fed firearm in which the magazine is located above the trigger and at an angle to the vertical plane. This solution allows to reduce the length of the firearm, while not complicating the process of installing the magazine.

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 invention relates to handguns and is the firearm has the shorter length compared to systems in which the magazine is located in front of the trigger guard. Besides, the proposed firearm has the ability to quickly disassemble into the main components, which significantly reduces the dimensions of the firearm in the transport position. In addition, the magazine is also protected from loss when moving with the assembled firearm.

These results are achieved by the fact that the magazine of the firearm is located above the trigger guard, while access to the magazine is carried out only when the firearm is opened by turning the upper part of the receiver relative to its lower part. At the same time, the upper part of the receiver can be easily detached from its lower part to reduce the dimensions of the firearm during transportation.