A rest for cleaning a rifle and for sighting a scope, a stock, and a bore of the rifle. The rest includes a base, a vise assembly, a fore-end support assembly, and an elevator assembly. The vise assembly adjusts for different-length rifles and clamps the stock of the rifle therein. The fore-end support assembly adjusts for the different-length rifles and supports the fore-end of the rifle thereon. The elevator assembly adjusts for the different-length rifles and supports the barrel of the rifle therein. The rest further includes a lapping tool, alignment tools, a stock alignment tool, a bore sighting tool, a centering tool, and a set of diopters. The lapping tool insures smoothness and proper interior profile of the mounting rings for a scope. The alignment tools insures that the scope fits properly without any binding or protrusions. The stock alignment tool lines up the stock of the gun so the gun is leveled. The bore sighting calibrates the scope. The centering tool cradles, centers, and supports the gun. A respective diopter is attached to an objective end of the scope to increase depth of field when a target is so close that the scope does not focus clearly.