White Label Armory is your source for high quality, American made, firearm OE style firearm components. Multiple CMMs and vision inspection systems, as well as a robust QC process, ensure that your parts match print and exceed expectations. Manufactured to Mil-Spec quality, these parts are sure to be great for your next AR build.This M16-profile bolt carrier group is built for the 6.5 Grendel and 6mm ARC cartridges, two chamberings favored by shooters working at extended distances. The Blacknitride+ finish adds corrosion resistance and contributes to easier cleaning, which matters during long-range sessions and higher round counts. It is an option for builders assembling a dedicated upper or replacing a worn carrier group in an existing build.Because these cartridges use a bolt face and components specific to the 6.5 Grendel family, confirm your barrel, chamber, and magazine are matched to the same caliber before purchase. Verify fitment with your upper receiver and gas system, and ...