The U.S. Ballistics DBM Bottom Metal for the Ruger American provides a detachable box magazine configuration for compatible rifle setups. Designed for the Ruger American platform, this replacement bottom metal accommodates a removable magazine for convenient loading, unloading, and magazine changes.DBM stands for " Detachable Box Magazine," a system that allows the magazine to be removed from the rifle as a separate unit. This Ruger American bottom metal offers a practical replacement option for maintaining that convenience in a hunting or range rifle. Features:Designed For The Ruger AmericanDetachable Box Magazine ConfigurationAccommodates Compatible Removable MagazinesConvenient Magazine ChangesReplacement Bottom Metal