An integrated fixed sight on a firearm consists of a front sighting device and an external muzzle device. The external muzzle device includes a proximal end, a central axis, a mount body, a top surface, and a distal end. The front sighting device is laterally aligned with the central axis and mounted onto the top surface adjacent the proximal end. The front sighting device can vary in size and shape. The external muzzle device is mounted onto the barrel of the firearm through a clamp and a fastening mechanism. Since the threads on the barrel are not used, the threads of the barrel are preserved.

An integrated fixed sight on a firearm consists of a front sighting device and an external muzzle device. The external muzzle device includes a proximal end, a central axis, a mount body, a top surface, and a distal end. The front sighting device is laterally aligned with the central axis and mounted onto the top surface adjacent the proximal end. The front sighting device can vary in size and shape. The external muzzle device is mounted onto the barrel of the firearm through a clamp and a fastening mechanism. Since the threads on the barrel are not used, the threads of the barrel are preserved.

The present disclosure provides systems and techniques for an attachment that can be fastened to a gun. The attachment may include a top surface having a longitudinal axis and an aiming sight that is parallel with the longitudinal axis, a front surface having a latitudinal axis that is perpendicular to the longitudinal axis, the front surface including a muzzle aperture, a left surface, a right surface, and a fastening system. The fastening system may include a first mounting aperture of the left surface, a second mounting aperture of the right surface, and a locking pin capable of being positioned in the first mounting aperture and in the second mounting aperture such that the locking pin fastens the attachment to the gun.

The attachment may be fastened to the gun such that the longitudinal axis is parallel with a longitudinal bore axis of the gun.

The present disclosure provides systems and techniques for an attachment that can be fastened to a gun. The attachment may include a top surface having a longitudinal axis and an aiming sight that is parallel with the longitudinal axis, a front surface having a latitudinal axis that is perpendicular to the longitudinal axis, the front surface including a muzzle aperture, a left surface, a right surface, and a fastening system. The fastening system may include a first mounting aperture of the left surface, a second mounting aperture of the right surface, and a locking pin capable of being positioned in the first mounting aperture and in the second mounting aperture such that the locking pin fastens the attachment to the gun. The attachment may be fastened to the gun such that the longitudinal axis is parallel with a longitudinal bore axis of the gun.

The present disclosure provides systems and techniques for an attachment that can be fastened to a gun. The attachment may include a top surface having a longitudinal axis and an aiming sight that is parallel with the longitudinal axis, a front surface having a latitudinal axis that is perpendicular to the longitudinal axis, the front surface including a muzzle aperture, a left surface, a right surface, and a fastening system. The fastening system may include a first mounting aperture of the left surface, a second mounting aperture of the right surface, and a locking pin capable of being positioned in the first mounting aperture and in the second mounting aperture such that the locking pin fastens the attachment to the gun. The attachment may be fastened to the gun such that the longitudinal axis is parallel with a longitudinal bore axis of the gun.

A plate carrier for carrying body armor has a front panel having a front connector panel, a rear panel behind the front panel, and a pair of side panels connected to the rear panel. The pair of side panels includes a right side panel and a left side panel. The right panel includes a right inside connector panel that connects to the front connector panel. The left panel includes a left inside connector panel that connects to the front connector panel. An outside flap panel extends from a lower edge of the front panel. The outside flap panel includes an inside connector panel mounted on an inside surface of the outside flap panel. The inside connector panel overlies the pair of side panels.

An extension device (1) of a firearm (500) mounts in an operating configuration, to a muzzle (555) of a barrel (550) of the firearm (500). The extension device (1) includes a main body (10) which has an inner element (11) housable inside the barrel (550) and suitable to firmly engage with an inner barrel wall (550) and an outer element (12) which extends axially adjacent to the inner element (11) and is suitable to be arranged outside the barrel (550) with the inner element (11) housed in the barrel (550). The extension device further includes a secondary body (20) fitted axially on the main body (10) and an attachment body (30) fitted axially on the outer element (12) and fixable thereto performing an axial thrust action on the secondary body (20) until the secondary body presses against the muzzle (555) of the firearm (500).

An extension device (1) of a firearm (500) mounts in an operating configuration, to a muzzle (555) of a barrel (550) of the firearm (500). The extension device (1) includes a main body (10) which has an inner element (11) housable inside the barrel (550) and suitable to firmly engage with an inner barrel wall (550) and an outer element (12) which extends axially adjacent to the inner element (11) and is suitable to be arranged outside the barrel (550) with the inner element (11) housed in the barrel (550). The extension device further includes a secondary body (20) fitted axially on the main body (10) and an attachment body (30) fitted axially on the outer element (12) and fixable thereto performing an axial thrust action on the secondary body (20) until the secondary body presses against the muzzle (555) of the firearm (500).

A speaker system is removably attached to a cellular telephone or telephone case to augment or supplant audio output of the phone. In one example, the system includes a protective telephone case with built in speakers. The attachment mechanism may alternatively or additionally be used as a universal attachment for cellular telephone accessories. The system may include a fastening mechanism configured to attach any accessory to a phone surface.

A speaker system is removably attached to a cellular telephone or telephone case to augment or supplant audio output of the phone. In one example, the system includes a protective telephone case with built in speakers. The attachment mechanism may alternatively or additionally be used as a universal attachment for cellular telephone accessories. The system may include a fastening mechanism configured to attach any accessory to a phone surface.