The GSG® MP40 9mm 10-Round Magazine is a genuine centerfire magazine, compatible with GSG’s faithful replica of the MP40. Featuring a durable, stainless steel body with a corrosion-resistant blued finish, this magazine comes equipped with a high-tensile steel spring and polymer follower to ensure smooth feeding operation, while the precision-machined feed lips deliver a snug, wobble-free fit for enhanced stability and reliable operation you can depend on. The steel floor plate is easily removed when maintenance and cleaning are required. Better yet, this GSG MP40-compatible magazine is manufactured to identical specs as the original MP40 magazines for a period-correct look and feel!