AR-15 BCG Facts Explained | What Matters & Why

In this high-level overview, we break down the essential facts about the AR-15 bolt carrier group (BCG)—what it is, why it matters, and how materials, coatings, and manufacturing quality impact reliability. No shooting, no disassembly guidance, and no how-to steps. Just clear, safe, practical information to help viewers better understand one of the rifle’s most important components.

Perfect for new AR owners, gear researchers, and anyone curious about what separates a quality BCG from a basic one.