Abstract: An end cap for a weapon can include a sub-frame, a body, and a rail. The end cap is a modular buttstock interface cap (MBIC) with a NATO STANAG 4694 or MIL-STD-1913 (Picatinny) rail interface that provides interchangeability between braces, stocks, and other accessories for weapon systems, including weapons with recoil buffer systems within the weapon's receiver. The MBIC can be a three-dimensional-printed structure.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device and an internal portion and a core seamlessly connected to the internal portion of the body, wherein the noise suppression includes no joints, no seams, or any formerly separate pieces within the body or the core, and the core includes a structure of a plurality of holes defined by a framework of a connecting structure that connects to the internal portion of the body. Optionally, the core can include one or more baffles or one or more chambers.

Abstract: A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device and an internal portion and a core seamlessly connected to the internal portion of the body, wherein the noise suppression includes no joints, no seams, or any formerly separate pieces within the body or the core, and the core includes a structure of a plurality of holes defined by a framework of a connecting structure that connects to the internal portion of the body. Optionally, the core can include one or more baffles or one or more chambers.

Abstract: A collapsible reflective optical sight for a firearm includes a base configured to mount the optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes a first optic with a reflective surface, and the lens is movable between a collapsed configuration in which the lens is folded down with respect to the base for storage and a deployed configuration in which the lens is angled with respect to the base for use in aiming the firearm; a light source mounted to the base that reflects light off the reflective surface of the first optic to a user for aiming the firearm; and a hood rotatably mounted to the base and connected to an upper portion of the lens. Additionally, the collapsible reflective optical sight can include a firearm and a mechanical sight.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device and an internal portion and a core seamlessly connected to the internal portion of the body, wherein the noise suppression includes no joints, no seams, or any formerly separate pieces within the body or the core, and the core includes a structure of a plurality of holes defined by a framework of a connecting structure that connects to the internal portion of the body. Optionally, the core can include one or more baffles or one or more chambers.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device and an internal portion and a core seamlessly connected to the internal portion of the body, wherein the noise suppression includes no joints, no seams, or any formerly separate pieces within the body or the core, and the core includes a structure of a plurality of holes defined by a framework of a connecting structure that connects to the internal portion of the body. Optionally, the core can include one or more baffles or one or more chambers.

Abstract: A collapsible reflective optical sight for a firearm includes a base configured to mount the optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes a first optic with a reflective surface, and the lens is movable between a collapsed configuration in which the lens is folded down with respect to the base for storage and a deployed configuration in which the lens is angled with respect to the base for use in aiming the firearm; a light source mounted to the base that reflects light off the reflective surface of the first optic to a user for aiming the firearm; and a hood rotatably mounted to the base and connected to an upper portion of the lens. Additionally, the collapsible reflective optical sight can include a firearm and a mechanical sight.

Abstract: A collapsible reflective optical sight for a firearm includes a base that mounts the optical sight to the firearm, a lens attached to and rotatable with respect to the base, wherein the lens includes a first optic with a reflective surface and the lens is folded with respect to the base for storage in a collapsed configuration and is angled with respect to the base in a deployed configuration for use in aiming the firearm, a light source on the base that reflects light off the reflective surface of the first optic to a user for use in aiming the firearm, a mechanical sight on the base for use in aiming the firearm when the lens is in the collapsed configuration, and a self-contained locking mechanism to mount the collapsible reflective optical sight to the firearm.

Abstract: A monolithic noise suppression device comprising a monolithic, integral baffle housing module. The module comprising, in turn, at least no welded joints or seams between the various components that make up the core of the module and no welded joints or seams between the core, or any structures that make up the core, and the various interior surfaces and/or structures that make up the body of the module. The module is preferably plastic and manufactured using a layered printing process. The monolithic, integral baffle housing module may include various other features that enhance performance, reduce manufacturing cost, facilitate customization and eliminate restrictions on disposability as compared to conventional noise suppression devices. The monolithic noise suppression device may further comprise a first stage noise suppression device to be used in conjunction with the monolithic, integral baffle housing module.

Abstract: A monolithic noise suppression device comprising a monolithic, integral baffle housing module. The module comprising, in turn, at least no welded joints or seams between the various components that make up the core of the module and no welded joints or seams between the core, or any structures that make up the core, and the various interior surfaces and/or structures that make up the body of the module. The module is preferably plastic and manufactured using a layered printing process. The monolithic, integral baffle housing module may include various other features that enhance performance, reduce manufacturing cost, facilitate customization and eliminate restrictions on disposability as compared to conventional noise suppression devices. The monolithic noise suppression device may further comprise a first stage noise suppression device to be used in conjunction with the monolithic, integral baffle housing module.

Abstract: A collapsible reflective optical sight for a firearm includes a base that mounts the optical sight to the firearm, a lens attached to and rotatable with respect to the base, wherein the lens includes a first optic with a reflective surface and the lens is folded with respect to the base for storage in a collapsed configuration and is angled with respect to the base in a deployed configuration for use in aiming the firearm, a light source on the base that reflects light off the reflective surface of the first optic to a user for aiming the firearm, and a mechanical sight on the base for aiming the firearm when the lens is in the collapsed configuration.

Abstract: A monolithic noise suppression device comprising a monolithic, integral baffle housing module. The module comprising, in turn, at least no welded joints or seams between the various components that make up the core of the module and no welded joints or seams between the core, or any structures that make up the core, and the various interior surfaces and/or structures that make up the body of the module. The module is preferably plastic and manufactured using a layered printing process. The monolithic, integral baffle housing module may include various other features that enhance performance, reduce manufacturing cost, facilitate customization and eliminate restrictions on disposability as compared to conventional noise suppression devices. The monolithic noise suppression device may further comprise a first stage noise suppression device to be used in conjunction with the monolithic, integral baffle housing module.