5.56 Melonite QPQ Bolt Assembly

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Part Number: 160511

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5.56 Complete Melonite QPQ Bolt Assembly

Bolt body produced from AISI 9310 VAR (Vacuum Arc Remelt), the highest standard bolt material made
Machined completely in one operation; this eliminates tolerance and repeatability issues that arise from the multiple fixturing processes used by other manufacturers
Enhanced Design for utmost reliability
Tightly controlled proprietary heat treat process to accurately control cast depth and core hardness
Extractor produced from MIL-S-5000 steel and vacuum hardened
NSCW Crane Division extractor upgraded with Viton® O-ring, 5 coil spring, and plunger