The KCI USA Glock 23/27 15-Round Magazine combines durability and reliability for your firearm needs. Engineered with a hardened steel insert encased in rugged polymer, this magazine ensures long-lasting performance while protecting against damage and deformation. Fits: Glock 23 / 27 Caliber: .40 S&W Capacity: 15 Rounds Body Material: Hardened Steel / Polymer Spring Material: Stainless Steel Optimize your shooting experience with this resilient magazine designed for consistent use.