Patent ID: 8186094

Claim:
The combination of a firearm and a device for aligning and adjusting an adjustable sight, said combination consisting of: a firearm having a breach, a longitudinally extending barrel having a forward portion and a rear portion, a bore extending through said longitudinally extending barrel and a longitudinally extending axis extending through said bore; a sight with an adjustment mechanism disposed on said barrel; and a device consisting of a metal body consisting of a forward cylindrical portion and a rear cylindrical portion with a larger diameter than said forward cylindrical portion abutting said forward cylindrical portion and wherein said forward cylindrical portion and said rear cylindrical portion are constructed out of a single piece of metal to provide an integral housing with a hollow chamber therein and an internally threaded rear portion, a metal disc externally threaded to screw into said rear portion to close the hollow chamber, a metal disc with a transparent window in the central part thereof closing a forward portion of said metal body, and a laser pointer and battery powering said laser pointer disposed in said rear cylindrical portion; wherein said forward cylindrical portion of said device is constructed and dimensioned to slidingly fit within a rear portion of said firearm through said breach and into said bore with the same tolerance as a bullet of suitable size for firing so that said laser pointer projects a light beam through said barrel along said longitudinally extending axis and out of said barrel to thereby form a light spot on a distant target so that said sight can be aligned with said light spot to thereby zero said firearm; and said laser pointer being a red/orange diode pumped solid state laser to produce a laser beam with an output power of no greater than 1 milliwatt with a wavelength of about 635 nanometers.