The EAA Check-Mate Witness 2311 Magazine is a durable and reliable aftermarket magazine designed for 2011 pistols chambered in 9mm or .38 Super. With a 17-round capacity, this magazine features a stainless steel construction with a corrosion-resistant finish for long-lasting durability. Equipped with a high-tensile steel spring and injection-molded polymer follower, it ensures smooth, jam-free feeding. The removable polymer floor plate allows for quick, tool-free disassembly, making maintenance effortless. Perfect for range use or personal defense, this magazine is a practical and dependable choice.