The Faxon Firearms AR-15 6.5 Grendel Type II (.136" Co-Bore) Bolt in 9310 Nitride delivers exceptional reliability and precision for high-performance rifle builds, pairing rugged steel construction with a durable black finish to withstand rigorous field use. This new bolt through its Type II design and carefully machined .136" co-bore geometry enhances headspace consistency and chamber alignment, promoting smoother extraction and reliable chambering in demanding 6.5 Grendel configurations. Crafted from premium 9310 steel and finished in a protective nitride coating, the bolt combines outstanding wear resistance with long-term dimensional stability, ensuring consistent locking and reliable cycling even under rapid-fire sequences or harsh environmental conditions. Its steel frame and robust construction are ideal for enthusiasts seeking a durable upgrade for AR-15 platforms, enabling tighter tolerances and improved feed timing when paired with compatible bolts carriers and barrels. Whether youre building a precision scout rifle, a versatile all-weather hunter platform, or a dedicated long-range accumulator, this Faxon bolt supports consistent performance, easier maintenance, and dependable reliability across a range of tactical and recreational applications.