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. What's more, Arm or Ally is proud to add Toolcraft products to our already fantastic line up of reputable manufacturers. Because of this, we can provide our customers with the best available AR parts at affordable prices. 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.