Wheeler Delta Series AR-15 Receiver Lapping Tool

The Wheeler AR-15 Receiver Lapping Tool is made to square the front face of an AR-15 upper receiver before barrel installation. Used with a drill and suitable lapping compound, the steel tool helps create a more uniform mating surface between the receiver and barrel extension. Its black-oxide finish protects the working tool between jobs.

A receiver face that is not square can affect how the barrel extension seats and can make gas-tube or barrel-nut alignment more difficult. Lapping removes small high spots rather than changing the entire receiver geometry. The process should be performed gradually, with the receiver inspected often instead of removing more material than necessary.

This is a specialized bench tool for AR-15 assembly and precision setup, not a general cleaning accessory. Follow the tool instructions and keep abrasive compound away from areas where it does not belong. Find more gun cleaning and maintenance tools for AR work and gunsmithing.

• Designed to square an AR-15 upper-receiver face
• Steel lapping tool with black-oxide finish
• Used with a drill and appropriate lapping compound
• Supports cleaner barrel and gas-system alignment