Wheeler Engineering 1082227 Delta Series AR LR/10 Variant Receiver Lapping Tool

Using a Lapping Tool on a receiver ensures a barrel mates up to a true and square receiver. The truer that mating location is the more accurate your firearm can be because receiver to barrel alignment is essential to accuracy. Lapping the surface can produce perfect positioning of the barrel nut so the proper torque can be achieved. This will also facilitate proper gas tube hole alignment. The Receiver Lapping Tool is easy to use with a battery powered or electric drill. The Lapping Tool can also help align front and rear A2 style sights. The kit comes complete with Flex Driver Shaft 220 Grit Lapping Compound and has a Black Oxide Finish.