Looking for an affordable alternative to factory Glock® magazines? Look no further! The KCI® .40 S&W 13-Round Magazine for Glock 23 pistols features a durable, high-impact polymer body with a hardened steel lining for lasting performance. Factory-drilled, numbered witness holes offer quick, at-a-glance round counts, while precise tolerances ensure a snug, reliable fit. Plus, the strong steel spring, coupled with an anti-tilt polymer follower, ensures reliable feeding and quicker loading.