Toolcraft 6.5 Grendel Bolt Carrier Group - Black Nitride

Toolcraft 6.5 Grendel Bolt Carrier Group is a Full Auto BCG, manufactured using a 9310-steel bolt, and a 8620 steel carrier. Together they make up one of the most popular, and well-built bolt carrier groups on the market. Toolcraft is a major OEM manufacturer for the U.S. Military and many other rifle manufacturers. Forget the fancy logo at a $50 premium, and have confidence it's 100% made in the USA, North Carolina. If ever a problem, simply call Toolcraft and they will take excellent care of you with their no questions asked Lifetime Warranty. Carrier Specifications Material: 8620 Steel Type: M16 Full Auto (Preferred for most AR-15 builds) Gas Key Material: 4130 Steel; Grade 8 Gas Key Screws Coating: Black Nitride Bolt Specifications Bolt Material: 9310 Steel | Shot Peened Extractor Material: 4140 Steel Caliber: 6.5 Grendel Bolt Face Depth: .136 (measured from face to end) Type: Type II Mil-Spec O-Ring Mil-Spec Gas Rings (3) Cam Pin Material: 8620 Steel Firing Pin Material: 416 Stainless Steel Other: MPI Inspected Lifetime Warranty - Toolcraft BCG carry a lifetime, no questions asked, warranty. Simply put... Should any Toolcraft product fail, return it to them for a brand-new replacement.