Todos os calibres que um AR-15 pode disparar!
This guide, presented by an experienced firearms instructor, details the extensive caliber compatibility of the AR-15 platform. It highlights that AR-15s can be configured to fire numerous calibers beyond the common .223, including 5.56 NATO, .300 Blackout, 7.62x39mm, 9mm, and even powerful options like .458 Socom, .450 Bushmaster, and .50 Beowulf, by simply swapping upper receivers. The video emphasizes the inherent modularity of the AR platform, showcasing various Durkin Tactical upper receivers as examples.













