In an autoloading gun construction having the breach end of a barrel removably assembled to the forward end of a barrel extension which is positioned between and secured to wall sections of two opposing receiver plates of a receiver section, the improvement comprising an aperture formed thru each wall section, and a weld formed between edge portions of each aperture and adjacent portions of the barrel extension.

The present invention is an improved quick change barrel system for a firearm. It features an interlocking trunnion and lock ring that hold the barrel in place proximate the receiver. Intermittent threading provides multiple points of interface. A foldable handle is provided to allow safe removal of the lock ring and additional torque for attachment and removal of the lock ring from the system.

This invention concerns a unique firearm trigger, safety and stock attachment mechanism and to an embodiment in a semi-automatic blowback rifle where the receiver is mounted in the buttstock, a style commonly referred to as a "bullpup". The trigger is a dual electrical and mechanical design with one trigger lever and a control timer. The safety is forward mounted and blocks the sear. The stock mounting prevents bending moments in the stock to be transmitted to the barrel/receiver assembly. The b...

A tensioning device used for achieving mass-production interchangeability of the barrels for a shotgun with articulated barrels is positioned between the barrels and the breech of the gun and comprises a rod-shaped element constituted by a fixed portion and a movable portion guided for moving on the fixed portion and subject to the action of a powerful spring which urges it against a tenon. Means are provided for adjustably engaging the rod-shaped element on the tenon.

A new double barrel shotgun for increasing firing capacity and allowing simultaneous pump action of both forearm members or independent operation of one firing mechanism if one barrel becomes unusable due to jamming. The inventive device includes a receiver with a pair of elongate spaced apart barrels coupled at their rear ends to the front end of the receiver. A pair of spaced apart elongate magazine tubes are also coupled at their rear ends to the receiver front end. A pair of spaced apart for...

A hold adjustment device between fore-end iron and action body in a break-open firearm comprising at least one barrel (13) mobile by rotation about a fixed hinging point (15) arranged on an action body (14) between an aligned closed position and a disengaged position rotated open with respect to the action body (14), a tenon (18) fixed at the bottom to the at least one barrel (13) for hooking with a fore-end iron (16), comprising a block (21), or cursor, axially mobile with respect to the fore-e...

Firearm barrel change apparatus for a firearm having a receiver and a barrel with a portion configured to slide into the receiver. The firearm barrel change apparatus also includes a barrel receiving nut having provisions for slidably receiving the inner portion of a firearm barrel and a barrel retention member. The barrel retention member has a portion thereof sized and shaped to cooperate with the barrel receiving nut to lock the firearm barrel to the receiver. A special handguard assembly is ...

An over-and-under shotgun apparatus includes a radius track which serves as a hinge for articulating the barrel portion of the shotgun apparatus relative to the receiver/stock portion of the shotgun apparatus. The radius track is defined by a female or concave portion formed on the monoblock attached to the shotgun barrels, and a male or convex portion formed on the frame or receiver section. The radius track defines a pivot axis that is spaced from the radius track. The radius track provides a ...

A folding firearm comprises a stock supporting a receiver, the receiver defining a bore for receiving a first end of the firearm barrel. A forearm is operably pivotally connected to the stock. The forearm includes a barrel securing mechanism having a securement member. The firearm barrel has a surface adjacent to the first end for engaging the securement member. The securement member is matingly engageable with the surface of the barrel. The securement member, in response to pivotal movement by ...

A barrel balancing device for collapsible firearms (20) wherein at least one barrel (9) which is rotatable about a fixed hinging point (7) arranged on a action body (6), wherein an open-close top lever (13) is provided between a closed aligned position of the at least one barrel (9) and the action body (6), and a position disengaged and rotated upon opening of said at least one barrel (9) with respect to said action body (6), the at least one barrel (9) being carried by an iron fore-end (8), whe...