A pistol with aiming stripe has a frame, a slide operable to reciprocate on the frame, the slide having an elongated top surface, the slide top surface having a forward end and an opposed rear end, and an aiming stripe having a contrasting appearance relative to the slide top surface and extending along a medial path along the slide top surface from proximate to the front end to proximate to the rear end. The slide may include a front sight proximate to the front end and a rear sight proximate to the rear end, and the aiming stripe extending from the front sight to the rear sight. The slide may define an elongated medial recess receiving the aiming stripe. The aiming stripe may be a film applied to the slide. The aiming stripe may be an articulated surface.

A novel and improved rotating stock butt and rotating sight apparatus that applies to a shoulder fired firearm where the firing mechanism and the sight apparatus is elevated above the stock butt when in a horizontal shooting position. This system comprises a cooperation between the rotating stock butt and the rotating sight apparatus that allows the firing mechanism and the barrel of the firearm to be off set to either the right or to the left of the stock butt while the sight of the rotating sight apparatus can be rotated and secured at the top center of the firearm barrel, allowing the shooter minimal head movement in the gun mount.

An alignment aid for a suppressor includes a sleeve having an external surface and an internal surface. An alignment slot extends longitudinally along the external surface of the sleeve. A groove is in the internal surface, and a strip is at least partially in the groove. A set screw is engaged with the strip to bias the strip radially inward from the groove.

A firearms sight is provided. The sight has a body having a rear aperture disc connected at one end, and a front sight disc connected at the opposite end. In use, a user may look through the rear aperture disc to align a marker of the front sight disc with an aperture of the rear aperture disc, the marker being visible through the rear aperture disc.

A firearms sight is provided. The sight has a body having a rear aperture disc connected at one end, and a front sight disc connected at the opposite end. In use, a user may look through the rear aperture disc to align a marker of the front sight disc with an aperture of the rear aperture disc, the marker being visible through the rear aperture disc.

A novel and improved rotating stock butt and rotating sight apparatus that applies to a shoulder fired firearm where the firing mechanism and the sight apparatus is elevated above the stock butt when in a horizontal shooting position. This system comprises a cooperation between the rotating stock butt and the rotating sight apparatus that allows the firing mechanism and the barrel of the firearm to be off set to either the right or to the left of the stock butt while the sight of the rotating sight apparatus can be rotated and secured at the top center of the firearm barrel, allowing the shooter minimal head movement in the gun mount.

A firearm system can include a modular mono-block shotgun system and a standardizing sighting system. The modular mono-block shotgun system can have multiple interchangeable barrels of different gauges for assembling a single shotgun. Each barrel can include an inherent low-rail sight longitudinally along its top surface. The standardizing sighting system can be installed upon the low-rail sight of each barrel of the modular mono-block system. The height of each barrel with its corresponding component of the standardizing sighting system can be substantially equal to the height of a largest gauge barrel with its corresponding component. After changing barrels, a need to make adjustments to the shotgun to account for changes in sighting and impact spread can be eliminated.