Detachable magazines, often a costly upgrade to other factory rifles, have been a standard feature on Browning big game rifles for decades. The AB3 is no exception, featuring an extremely tough steel and polymer box magazine that protrudes just enough from the stock to allow you a tactile reference if a mag is inserted in the rifle.
WARNING: To the state of California, this product is known to have chemicals that cause cancer, birth defects, and harm to the reproductive system.