Expertly CNC machined from 6160 aluminum. Designed to perfectly align the receiver pieces and prevent warping during welding. The jig provides a non-stick surface to weld against leaving behind a smooth, clean weld. To achieve precise alignment, a threaded rod is inserted through the entire jig and receiver, extending from the barrel to the back plate. Each jig set includes a threaded rod, washers, wing nuts and a barrel insert.
Select an 18in threaded rod if you’re building with a standard 10.5in barrel. If you’re building with a 16in barrel, select a 24in rod.