Product Description The WMD Guns NiB-X .308 bolt carrier group is designed for long service life and simplified cleanup in harsh environments. Featuring WMD&';s NiB-X (nickel boron) finish to help reduce fouling adherence, this DPMS-style compatible .308 BCG is built for smooth cycling with easier maintenance and reliable operation. This model is supplied without a hammer. Product Highlights NiB-X (nickel boron) coated .308 bolt carrier group for reduced fouling and easier cleaning DPMS-style compatible for many .308 AR / LR-308 pattern builds Heat treated for durability and long-term performance Properly staked gas key design (as listed by distributors) to help maintain dependable function Offered without a hammer for parts builds and replacements Specs Brand: WMD Guns Product Type: Bolt Carrier Group Caliber: .308 Compatibility: DPMS-style / DPMS compatible (as listed) Finish/Coating: NiB-X (Nickel Boron) Heat Treated: Yes Includes Hammer: No Manufacturer Part Number: NIBXBCG308 UPC: 855899003331 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.