The Surefire Enhanced Bolt Carrier Group (BCG) is designed by James Sullivan to address reliability issues in short-barreled AR-15 platforms. It features a longer carrier body, a shortened gas key, and a proprietary buffer system that increases dwell time by approximately 15% and extends the carrier's stroke length. An internal anti-bounce weight ensures stability during full-auto fire. This upgrade is highly recommended for SBRs and automatic fire applications.
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