This is a Hammerli Forge H1 .22 LR 12-round magazine from Walther. Featuring rugged stainless steel construction, this Forge H1 12-round magazine is built for lasting durability and corrosion resistance in harsh and demanding conditions. The high-tensile steel spring and polymer follower work together to ensure smooth feeding operation and proper cartridge alignment for consistent performance you can depend on. Plus, the polymer floorplate adds an extra layer of impact resistance that's perfect for tactical mag drops and lightning-fast reloads.