X Products AR-15 M15 5.56 Phosphate Stripped Bolt Mpi Tested
Crucial Part For Your Custom Build
Machined steel bolt is ready for installation of ejector, extractor and gas rings to complete you own AR-15 build.
Every bolt is shot peened and magnetic particle inspected to ensure quality. The phosphate finish resists heat, wear and corrosion for long service life.
SPECS: 9130 steel, black phosphate finish. Does not include ejector, extractor or gas rings.
Each Bolt is Mpi Tested But may or may not be marked mpi even though all Ar Products Bolts Are MPI Tested.