The Xtech Tactical Speedmag is a 30-round magazine designed for use with Mil-Spec AR-15 lower receivers. It features a unique collar that allows users to drop multiple rounds into the magazine quickly, reducing loading time and effort. The Speedmag accepts any ammunition compatible with regular mil-spec magazines, including .223 Remington, 5.56 NATO, and .300 AAC Blackout.Key FeaturesCapacity: Holds up to 30 rounds of ammunition.Compatibility: Fits all Mil-Spec AR-15 lower receivers.Color: Finished in Black for a tactical appearance.