AR-15 6.5 GRENDEL TYPE II (.136" CO-BORE) BOLT - 9310 NITRIDE

AR-15 6.5 GRENDEL TYPE II (.136

9310 Tool Steel Construction (Stronger than C158)

Full MIL-SPEC Heat Treatment

Shot Peened to MIL-SPEC

Magnetic Particle Inspection (MPI)

Back of Lugs Chamfered for Reliability

Spring, Insert, & "Crane" O-Ring Installed

QPQ - Salt Bath Nitrided

.136" Co-Bore (Type II) Bolt Face for 6.5 Grendel

Link to parts manufacturer

9310 Tool Steel Construction (Stronger than C158)

Full MIL-SPEC Heat Treatment

Shot Peened to MIL-SPEC

Magnetic Particle Inspection (MPI)

Back of Lugs Chamfered for Reliability

Spring, Insert, & "Crane" O-Ring Installed

QPQ - Salt Bath Nitrided

.136" Co-Bore (Type II) Bolt Face for 6.5 Grendel

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