Get the reliable feeding and classic build you expect from mil-spec mags without the price tag. The KCI AR-15 30-Round Aluminum Magazine is a durable, no-frills workhorse, compatible with all standard AR-15/M4 platforms in .223 Rem / 5.56 NATO. Constructed from lightweight aluminum with a hard-anodized finish, these mags are perfect for range days, training, and backups. The anti-tilt follower and heat-treated spring ensure smooth performance in all conditions. Specifications: – Capacity: 30 Rounds – Caliber: .223 Rem / 5.56 NATO