The bolt carrier group (BCG) is the heartbeat of an AR-15 rifle, driving the critical processes of chambering, firing, extracting, and cycling rounds. A high-quality BCG ensures flawless operation, enhances durability, and minimizes maintenance, making it a cornerstone for any serious shooter or builder. With an array of brands and configurations flooding the market, selecting … Continue reading Top 11 AR-15 Bolt Carrier Groups of 2025 Reviewed