A grip attachment for a firearm includes a hollow grip cover for receiving the firearm rear hand grip and having an expansion slit defined in a lateral side thereof and an arm extending to the rear of the grip cover. The arm includes an attachment ring for receiving the firearm butt stock extension tube in sliding engagement and a butt stock coupling disposed at a rearward end of the arm for coupling the rearward end of said grip attachment to the firearm butt stock. The butt stock coupling comprises a rearward extending wedge for preventing engagement of the firearm butt stock locking mechanism.

A grip attachment for a firearm includes a hollow grip cover for receiving the firearm rear hand grip and having an expansion slit defined in a lateral side thereof and an arm extending to the rear of the grip cover. The arm includes an attachment ring for receiving the firearm butt stock extension tube in sliding engagement and a butt stock coupling disposed at a rearward end of the arm for coupling the rearward end of said grip attachment to the firearm butt stock. The butt stock coupling comprises a rearward extending wedge for preventing engagement of the firearm butt stock locking mechanism.

An improved device for converting a semi-automatic self-loading handgun into a fully automatic weapon. The handgun is fixed in the front part of a case. An operating trigger is arranged in the case behind the handgun. Between the operating trigger and the trigger of the handgun a means is provided that causes pulling the trigger in a repeated series as long as the operating trigger is pulled. A hitting element is locked when being in rear position and when the operating trigger is in non-pulled state. A rocking arm causes the pulling of the own trigger when the hitting element is forced by a spring to move forward in the pulled state of the operating trigger. A locking assembly is provided and prevents forward movement of the hitting element, this locking starts when the slide has moved into rearmost position until the slide returns into its forward base position.

An improved device for converting a semi-automatic self-loading handgun into a fully automatic weapon. The handgun is fixed in the front part of a case. An operating trigger is arranged in the case behind the handgun. Between the operating trigger and the trigger of the handgun a means is provided that causes pulling the trigger in a repeated series as long as the operating trigger is pulled. A hitting element is locked when being in rear position and when the operating trigger is in non-pulled state. A rocking arm causes the pulling of the own trigger when the hitting element is forced by a spring to move forward in the pulled state of the operating trigger. A locking assembly is provided and prevents forward movement of the hitting element, this locking starts when the slide has moved into rearmost position until the slide returns into its forward base position.

An improved device for converting a semi-automatic self-loading handgun into a fully automatic weapon. The handgun is fixed in the front part of a case. An operating trigger is arranged in the case behind the handgun. Between the operating trigger and the trigger of the handgun a means is provided that causes pulling the trigger in a repeated series as long as the operating trigger is pulled. A hitting element is locked when being in rear position and when the operating trigger is in non-pulled state. A rocking arm causes the pulling of the own trigger when the hitting element is forced by a spring to move forward in the pulled state of the operating trigger. A locking assembly is provided and prevents forward movement of the hitting element, this locking starts when the slide has moved into rearmost position until the slide returns into its forward base position.

An improved device for converting a semi-automatic self-loading handgun into a fully automatic weapon. The handgun is fixed in the front part of a case. An operating trigger is arranged in the case behind the handgun. Between the operating trigger and the trigger of the handgun a means is provided that causes pulling the trigger in a repeated series as long as the operating trigger is pulled. A hitting element is locked when being in rear position and when the operating trigger is in non-pulled state. A rocking arm causes the pulling of the own trigger when the hitting element is forced by a spring to move forward in the pulled state of the operating trigger. A locking assembly is provided and prevents forward movement of the hitting element, this locking starts when the slide has moved into rearmost position until the slide returns into its forward base position.

A method for disassembling and converting a traditional AR-pattern firearm into a bullpup configuration of a semi-automatic rifle firearm assembly includes releasing and removing at least a firearm but stock and a standard bolt carrier group from the rifle firearm and then replacing the removed components with elements from a bullpup kit, namely a bullpup bolt carrier group that includes a bolt carrier and a spring assembly, the spring assembly having compression spring that is loaded when the bolt carrier recoils.

A method for disassembling and converting a traditional AR-pattern firearm into a bullpup configuration of a semi-automatic rifle firearm assembly includes releasing and removing at least a firearm but stock and a standard bolt carrier group from the rifle firearm and then replacing the removed components with elements from a bullpup kit, namely a bullpup bolt carrier group that includes a bolt carrier and a spring assembly, the spring assembly having compression spring that is loaded when the bolt carrier recoils.

A trigger reset device that utilizes a base and a pivotal paddle to aid in the reset the trigger of a semi-automatic firearm that utilizes a bolt carrier group and single stage trigger. After each actuation of the trigger, the trigger reset device aids in the reset of the trigger at a rate faster than most amateur operators are able to release their finger off the trigger. The aided reset device thereby allows the operator to the fire the firearm at an enhanced rate.

A trigger reset device that utilizes a base and a pivotal paddle to aid in the reset the trigger of a semi-automatic firearm that utilizes a bolt carrier group and single stage trigger. After each actuation of the trigger, the trigger reset device aids in the reset of the trigger at a rate faster than most amateur operators are able to release their finger off the trigger. The aided reset device thereby allows the operator to the fire the firearm at an enhanced rate.