A retractable support assembly for a firearm. The assembly includes a swiveling support structure configured for attachment to or adjacent to the forward end of a firearm extension component on the firearm. The support structure is substantially centered on the longitudinal axis of the firearm barrel and permits movement of the longitudinal axis of the firearm barrel relative to a position fixed by deployment of the assembly for variable aiming of the firearm. The support structure has a central ball unit defined by a channel for passage of a barrel of the firearm. The ball unit is configured for rotatable movement within a socket formed by a rearward ball retention element and a forward ball retention element. The assembly includes a plurality of legs pivotably connected to the support structure for movement between an extended position and a retracted position.

Stocks for aimable devices are provided, In one aspect, stock has a body mechanically associated with the aimable device and movable to determine an aiming axis of the aimable device, a shoulder mount positioned proximate to one end of the body, a firing grip positioned apart from the shoulder mount along a length of the body; a support leg having a mounting end pivotably mounted to the body between the firing grip and an end of the body opposite from the shoulder mount and having a foot end movable between a first range of positions and a second range of positions and a receiver located between the mounting of the support leg to the body and the firing grip and adapted to releasably hold the support leg in the first range of positions wherein the at least one support leg provides a grippable forestock.

Stocks for aimable devices are provided. In one aspect, stock has a body mechanically associated with the aimable device and movable to determine an aiming axis of the aimable device, a shoulder mount positioned proximate to one end of the body, a firing grip positioned apart from the shoulder mount along a length of the body; a support leg having a mounting end pivotably mounted to the body between the firing grip and an end of the body opposite from the shoulder mount and having a foot end movable between a first range of positions and a second range of positions and a receiver located between the mounting of the support leg to the body and the firing grip and adapted to releasably hold the support leg in the first range of positions wherein the at least one support leg provides a grippable forestock.

Provided is a foot attachment adapter for a firearm support device having at least one leg. The adapter includes a body configured to attach to a leg of a firearm support device and a socket. A foot having has an attachment portion that is configured to be detachably received by the socket. A temporarily deformable elastomeric member is positioned at least partially in the socket to allow insertion of the foot portion and to releasably hold the attachment portion in the socket.

A bipod and grip apparatus mounted to the rail system under the stock in fire and air rifles is disclosed. In particular, the bipod and grip apparatus is designed to ensure that the user can fire the rifle in a lying position or to fire by fastening the rifle to a predetermined position and to grip the rifle during firing without any discomfort.

A bipod and grip apparatus mounted to the rail system under the stock in fire and air rifles is disclosed. In particular, the bipod and grip apparatus is designed to ensure that the user can fire the rifle in a lying position or to fire by fastening the rifle to a predetermined position and to grip the rifle during firing without any discomfort.

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

An accessory mounting interface for a firearm, and a related method, are disclosed. The interface has a firearm accessory, a first elongated fastener, and a second fastener rotationally mated to the first elongated fastener. The first elongated fastener has right-handed threading and is arranged through a through hole in the firearm accessory with a first end extending below first and second halves of a first slot protrusion of the firearm accessory. The second fastener has a length greater than a width, the length measured along a longitudinal axis of the second fastener, the second fastener having a plurality of straight edges. At least one of the plurality of straight edges prevents the second fastener from rotating further than a closed position when the at least one of the straight edges abuts a sidewall of an elongated slot in the firearm.

A retractable support assembly for a firearm. The assembly includes a swiveling support structure configured for attachment to or adjacent to the forward end of a firearm extension component on the firearm. The support structure is substantially centered on the longitudinal axis of the firearm barrel and permits movement of the longitudinal axis of the firearm barrel relative to a position fixed by deployment of the assembly for variable aiming of the firearm. The support structure has a central ball unit defined by a channel for passage of a barrel of the firearm. The ball unit is configured for rotatable movement within a socket formed by a rearward ball retention element and a forward ball retention element. The assembly includes a plurality of legs pivotably connected to the support structure for movement between an extended position and a retracted position.

A retractable support assembly for a firearm. The assembly includes a swiveling support structure configured for attachment to or adjacent to the forward end of a firearm extension component on the firearm. The support structure is substantially centered on the longitudinal axis of the firearm barrel and permits movement of the longitudinal axis of the firearm barrel relative to a position fixed by deployment of the assembly for variable aiming of the firearm. The support structure has a central ball unit defined by a channel for passage of a barrel of the firearm. The ball unit is configured for rotatable movement within a socket formed by a rearward ball retention element and a forward ball retention element. The assembly includes a plurality of legs pivotably connected to the support structure for movement between an extended position and a retracted position.