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Code: 2HD-BCG-SP4-SRCXPBCG-BI-EDEMO-OT-D
MPN: SRCXPBCG-BI-EDEMO2
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 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.