Description
Product Info for Sharps Rifle Co. XPB 308 Balanced Bolt Carrier Group Complete
Sharps Xtreme Performance Bolt (XPB) 308 Balanced Bolt Carrier Group Complete In
The Sharps 308 Balanced Bolt Carrier Group Complete has the same innovative design as the Sharps 5.56 Balanced Bolt Carrier Group. The 308 carrier is precisely machined from case-hardened 8620 alloy steel. The 308 Relia-Bolt is made of robust 9310 nickel-chrome-moly alloy steel. The entire BCG is finished with DLC (Diamond Like Carbon) Coating. The Sharps 308 Balanced Bolt Carrier Group has the SRC logo machine cut and visible when the ejection port door is open. Sharps 308 BCG is compatible with DPMS LR-308 style platforms.
Features/Specifications:
Bolt: 9310 steel, shot peened DLC coated (U.S. Patent No. 9,863,729)
Bolt Carrier: 8620 steel, shot peened and DLC coated
Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked and DLC Coated
Cam Pin: 4340 Steel, Manganese Phosphate coated
Firing Pin: Mil Spec firing pin made of 8740 steel, centerless ground and Hard Chrome coated
Extractor: 4340 Steel, Manganese Phosphate coated
Ejector: S7, shot peened and Manganese Phosphate coated
Extractor Pin: S7, shot peened and Manganese Phosphate coated
Mil-Spec Extractor and Ejector Springs, Firing Pin Retaining Pin, Gas Rings
Batch 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
Specifications for Sharps Rifle Co. XPB 308 Balanced Bolt Carrier Group Complete:
| Color: | DLC Black |
| Finish: | Matte |
| Fabric/Material: | 8620 Alloy Steel |
| Caliber: | .308 Caliber |
| Gun Model: | AR-10, AR-15 |
| Reloading Caliber: | .308 Caliber |
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