Product Description The Aero Precision 6.5 Grendel Complete Bolt Carrier Group is a precision-engineered, high-quality BCG built to be a valuable addition to any 6.5 Grendel or 6mm ARC AR-15 build. The carrier is machined from 8620 steel and features an M16-cut profile with forward assist serrations, while the bolt is machined from 9310 tool steel for exceptional toughness under demanding conditions. A Black Nitride finish delivers an advanced low-friction coating that significantly reduces the need for lubricants and simplifies routine cleaning. Every unit is HPT tested, MPI marked, and ships with a properly staked gas key, ensuring confidence in both performance and longevity. Made in the United States to meet the standards of serious AR-15 builders. Product Highlights M16-cut carrier machined from 8620 steel with forward assist serrations for smooth, reliable cycling in AR-15 platforms 6.5 Grendel bolt machined from 9310 tool steel and shot peened for superior strength and extended service life Type 2 Bolt Face (.136) ensures compatibility with 6.5 Grendel and 6mm ARC chamberings Black Nitride finish provides a low-friction, corrosion-resistant surface that minimizes the need for lubricants and eases cleaning HPT tested, MPI marked, and features a properly staked gas key for uncompromising reliability right out of the box Specs Brand: Aero Precision MPN: APRH100725C UPC: 840014606252 Caliber: 6.5mm Grendel / 6mm ARC Firearm Fit: AR-15 Carrier Material: 8620 Steel Bolt Material: 9310 Tool Steel Finish: Black Nitride Bolt Face Type: Type 2 (.136) Carrier Cut: M16 Weight: 11.52 oz Country of Manufacture: United States Condition: New Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>