This Ruger BX-1 Magazine Ruger 10/22, American Rimfire, Precision Rimfire 22 Long Rifle 10-Round is a factory original from Ruger. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts which guarantees excellent fit and reliable operation. This magazine features a rugged polymer body and magazine follower. The metal feed lips will stand up to thousands of rounds without any signs of wear or jams. The Ruger rotary magazine is superior to conventional feeding systems because each cartridge lies in its own channel in the magazine. This arrangement prevents jamming by eliminating the overlap between cartridge rims found with stack-type magazines. This magazine is black in color.