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Bolt Carrier Groups

Christensen Arms produces complete Bolt Carrier Groups (BCG) for AR-15 and AR-10 firearm platforms chambered in .223 Rem, 5.56x45mm, .308 Win, and 7.62x51mm. Christensen Arms' BGCs feature steel construction with a black nitride finish. These complete BCGs include a properly staked gas key assembly, complete bolt assembly, and complete firing pin assembly.