Abstract: A firing mechanism for a firearm includes a trigger, a forcing structure, and a spring within a cylinder, wherein while the trigger is pulled, the forcing structure moves to force the cylinder to contact a barrel and to force the spring to compress, and while the trigger is returned to an idle position, the forcing structure moves to allow the spring to decompress and to force the cylinder away from the barrel.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device, an internal portion, a first end, and a second end; a core seamlessly connected to the internal portion of the body; and a spine protruding from the body, wherein the noise suppression device includes no joints, no seams, or any formerly separate pieces within the body or the core.

Abstract: A noise suppression device includes a body including an outermost external surface of the noise suppression device, an internal portion, a first end, and a second end; a core seamlessly connected to the internal portion of the body; and a bore extending completely through and along a longitudinal axis of the noise suppression device, wherein the noise suppression device includes no joints, no seams, and no formerly separate pieces within the body or the core, a porosity of the core at the internal portion of the body is different than a porosity of a portion of the core along a radial direction closer to the bore, where the porosity is defined as a fraction of a volume of pores per volume of mass in a material of the noise suppression device.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device, an internal portion, a first end, and a second end; a core seamlessly connected to the internal portion of the body; and a spine protruding from the body, wherein the noise suppression device includes no joints, no seams, or any formerly separate pieces within the body or the core.

Abstract: A reflective sight for use with a firearm includes a rear sight; a light source in the rear sight; a front sight; and a reflector in the front sight, wherein the rear sight and the front sight are aligned using light emitted from the light source that is reflected by the reflector toward the rear sight and through a light path aperture to a user.

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 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 firing mechanism for a firearm includes a frame, a barrel attached to the frame, a cylinder attached to the frame and including a chamber that is alignable with the barrel, and a latch pin in direct contact with the cylinder that moves forward to force the cylinder forward to directly contact the chamber with the barrel when a trigger is pulled.

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 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 firing mechanism for a firearm includes a frame, a barrel attached to the frame, a cylinder attached to the frame and including a chamber that is alignable with the barrel, and a latch pin in direct contact with the cylinder that moves forward to force the cylinder forward to directly contact the chamber with the barrel when a trigger is pulled.

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, an internal portion, a first end, and a second end; and a core seamlessly connected to the internal portion of the body, wherein the noise suppression device includes no joints, no seams, or any formerly separate pieces within the body or the core, and a porosity of a first portion of the body that is adjacent to the first end is different than a porosity of a second portion of the body that is adjacent to the second end. Alternatively, the core includes a plurality of baffles, and a porosity of a first baffle that is adjacent to the first end is different than a porosity of a second baffle that is adjacent to the second end.

Abstract: A reflective sight for use with a firearm includes a rear sight; a light source in the rear sight; a front sight; and a reflector in the front sight, wherein the rear sight and the front sight are aligned using light emitted from the light source that is reflected by the reflector toward the rear sight and through a light path aperture to a user.

Abstract: A noise suppression device for use with a firearm includes a body including an outermost external surface of the noise suppression device, an internal portion, a first end, and a second end; and a core seamlessly connected to the internal portion of the body, wherein the noise suppression device includes no joints, no seams, or any formerly separate pieces within the body or the core, and a porosity of a first portion of the body that is adjacent to the first end is different than a porosity of a second portion of the body that is adjacent to the second end. Alternatively, the core includes a plurality of baffles, and a porosity of a first baffle that is adjacent to the first end is different than a porosity of a second baffle that is adjacent to the second end.

Abstract: A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

Abstract: A firing mechanism for a firearm includes a frame; a barrel attached to the frame and including a conical taper at a rear end of the barrel; a chamber attached to the frame and including a central bore through a center of the chamber and a conically tapered counter bore at a front end closest to the barrel; and a spring in the central bore to force the chamber backward.

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.