High-capacity replacement for factory GSG-5 .22 LR magazine features a lightweight, yet rugged one-piece polymer body for added firepower and reliability. Precision-wound spring and polymer follower help ensure smooth feeding. Includes assist button for retracting the follower with your thumb for easy loading, plus handy viewing slot for checking your round count. Mfg: Pro Mag SPECS: Reinforced, injection-molded polymer body and follower, black. Heat-treated, chrome-silicon wire spring. Fits GSG-5, GSG-522 Carbine, and GSG-5P pistol chambered in .22 LR.