Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group BCG Flat Dark Earth Carrier and FDE Bolt

Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group BCG Flat Dark Earth Carrier and FDE Bolt. Both are machined out of S7 tool steel. The XPB undergoes a 24-hour thermal cycle proprietary heat treatment. The XPB carrier displays the SRC logo machine cut and is visible when the ejection port door is open. The XPB fits standard AR-15/M16/M4 rifles chambered in .223/5.56 Sharps 25-45 and 300 Blackout calibers. Specifications for Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group (BCG): Manufacturer: Sharps Rifle Company Fabric/Material: Steel Cartridge: .223 Remington Gun Make: AR Platform Gun Model: M16 M4 AR-15 Condition: New Bolt Material: S7 Tool steel Carrier Material: S7 Tool Steel Features of Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group MPI and HPT tested Tensile strengths of 1550-1600 mpa or 220000-235000 psi. Toughness of over 200 ft./lb. Charpy C-Notch HRC of 46 yields a 15percent increase in hardness at the same toughness comparing to Carpenter 158 & 9310 Mil-Spec Extractor and Ejector Springs Firing Pin Retaining Pin Gas Rings Package Contents: Sharps Rifle Company AR-15 Xtreme Performance Bolt XPB Carrier Group Sharps Rifle Company SRCXPBCG-FDE: AR-15 Xtreme Performance Bolt XPB Carrier Group Flat Dark Earth Carrier and FDE Bolt