This factory-original Glock .40 caliber 9-round magazine is engineered for reliability and performance. Constructed from durable polymer with a hardened steel insert, it features a high-tensile spring and a precision-molded follower to ensure smooth, consistent feeding. The magazine is compatible with Glock models chambered in .40 S&W, offering a compact yet dependable option ideal for concealed carry, backup use, or range training. Clear witness holes allow for quick round count, and the drop-free design ensures fast reloads. Backed by Glock’s reputation for quality, this 9-round mag delivers the strength and reliability you expect.