Sharps Rifle Company Xtreme Performance Bolt XPB Carrier Group (BCG)

The Sharps Xtreme Performance Bolt (XPB) Carrier Group BCG Complete is comprised of their patented Relia-Bolt and their Balanced Bolt Carrier. Both are machined out of S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56, Sharps 25-45, and 300 Blackout calibers. The XPB carrier displays the SRC logo machine cut and is visible when the ejection port door is open. Specifications for Sharps Rifle Company Xtreme Performance Bolt XPB Carrier Group (BCG): Manufacturer: Sharps Rifle Company Color: Black Finish: DLC Fabric/Material: Steel Cartridge: .223 Remington Gun Make: AR Platform Gun Model: M16, M4, AR-15 Condition: New Weight: 11.2 oz Bolt Material: Steel Carrier Material: 8620 Steel Features of Sharps Rifle Company Xtreme Performance Bolt XPB Carrier Group MPI and HPT tested Tensile strengths of 1550-1600 mpa, or 220,000-235,000 psi. Toughness of over 200 ft./lb. Charpy C-Notch HRC of 46 yields a 15% increase in hardness at the same toughness comparing to Carpenter 158 & 9310 Mil-Spec Extractor and Ejector Springs, Gas Rings Package Contents: Sharps Rifle Company Xtreme Performance Bolt XPB Carrier Group