A compensating damper comprises opposed working end faces, a hermetically sealed chamber between the working end faces, and a set of plates in the chamber with a film of viscous fluid between each pair of adjacent plates. The damper has at least two different film thickness zones across the set of plates, each of the different film thickness zones providing a different resistance response when acted upon by an outside force exerted on at least one of the opposed working end faces. Multiple internal guide pins may extend axially from the opposed working end faces for engaging the plate stack partially from each of said working end faces to increase the stroke while providing for a compact damper. The plates may have a conical configuration to providing dampening in different plans.

A compensating damper comprises opposed working end faces, a hermetically sealed chamber between the working end faces, and a set of plates in the chamber with a film of viscous fluid between each pair of adjacent plates. The damper has at least two different film thickness zones across the set of plates, each of the different film thickness zones providing a different resistance response when acted upon by an outside force exerted on at least one of the opposed working end faces. Multiple internal guide pins may extend axially from the opposed working end faces for engaging the plate stack partially from each of said working end faces to increase the stroke while providing for a compact damper. The plates may have a conical configuration to providing dampening in different plans.

A recoil reduction system for a firearm. In some embodiments, the recoil reduction system includes a biasing element and a butt pad assembly configured to deform substantially proportionate to each other during a recoil event. The biasing element and/or butt pad assembly may include a spring-type element or, alternatively, a dampening device. The butt pad assembly may include an open cell butt pad having a hardness that is substantially higher than conventional butt pads.

A recoil reduction system for a firearm. In some embodiments, the recoil reduction system includes a biasing element and a butt pad assembly configured to deform substantially proportionate to each other during a recoil event. The biasing element and/or butt pad assembly may include a spring-type element or, alternatively, a dampening device. The butt pad assembly may include an open cell butt pad having a hardness that is substantially higher than conventional butt pads.

An improved buttstock for a firearm is disclosed, the buttstock comprising a comb, the comb comprising an indexing surface on a comb extension, the comb extension being configured to move between an expanded configuration and a retracted configuration; a buttstock, the buttstock comprising a buttpad extension indexing surface, the buttstock being configured to move between an expanded configuration and a retracted configuration. A common lock can secure both the comb extension and the buttpad extension in a fixed position. The common lock can release one or both of the comb extension and the buttpad extension to slide with respect to the body of the stock.

An improved buttstock for a firearm is disclosed, the buttstock comprising a comb, the comb comprising an indexing surface on a comb extension, the comb extension being configured to move between an expanded configuration and a retracted configuration; a buttstock, the buttstock comprising a buttpad extension indexing surface, the buttstock being configured to move between an expanded configuration and a retracted configuration. A common lock can secure both the comb extension and the buttpad extension in a fixed position. The common lock can release one or both of the comb extension and the buttpad extension to slide with respect to the body of the stock.

A shoulder fired weapon comprising: a lower receiver, a magazine removably attachable to the lower receiver; a buffer tube attached to the lower receiver; a buttstock attached to the buffer tube, and where the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place. A rotating buffer apparatus comprising: a front end buffer tube, the front end buffer configured to screw into a lower receiver of a shoulder fired weapon; a rear end buffer tube, aligned with and adjacent to the front end buffer tube; the rear end buffer tube configured to attach to a buttstock; and where when the rotating buffer apparatus is installed into the shoulder fired weapon, the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place.

A shoulder fired weapon comprising: a lower receiver, a magazine removably attachable to the lower receiver; a buffer tube attached to the lower receiver; a buttstock attached to the buffer tube, and where the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place. A rotating buffer apparatus comprising: a front end buffer tube, the front end buffer configured to screw into a lower receiver of a shoulder fired weapon; a rear end buffer tube, aligned with and adjacent to the front end buffer tube; the rear end buffer tube configured to attach to a buttstock; and where when the rotating buffer apparatus is installed into the shoulder fired weapon, the buttstock can rotate with respect to the lower receiver and the buttstock can lock into place.

A compensating damper comprises opposed working end faces (1788), a hermetically sealed chamber between the working end faces, and a set of plates (1701) in the chamber with a film of viscous fluid between each pair of adjacent plates. The damper has at least two different film thickness zones across the set of plates, each of the different film thickness zones providing a different resistance response when acted upon by an outside force exerted on at least one of the opposed working end faces. Multiple internal guide pins (1723) may extend axially from the opposed working end faces for engaging the plate stack partially from each of said working end faces to increase the stroke while providing for a compact damper. The plates may have a conical configuration to providing dampening in different plans.

A compensating damper comprises opposed working end faces (1788), a hermetically sealed chamber between the working end faces, and a set of plates (1701) in the chamber with a film of viscous fluid between each pair of adjacent plates. The damper has at least two different film thickness zones across the set of plates, each of the different film thickness zones providing a different resistance response when acted upon by an outside force exerted on at least one of the opposed working end faces. Multiple internal guide pins (1723) may extend axially from the opposed working end faces for engaging the plate stack partially from each of said working end faces to increase the stroke while providing for a compact damper. The plates may have a conical configuration to providing dampening in different plans.