15 Round Glock Magazine 9mm lets you boost the firepower of your Glock® 19 / 26 pistol. You can send plenty of practice rounds downrange without having to reload. This mag is also the ideal tube for any 9mm AR-15 carbine that uses Glock® mags. To ensure reliable function, this magazine has the same polymer and steel construction as factory mags, including a heat-treat hardened chrome silicon spring, and a smooth polymer follower that keeps the round stack moving. Polymer body with reinforcing internal steel tube Removable baseplate Witness holes to keep you apprised of round count Compatible with any accessories that fit Glock factory magazines Built exactly good-as-factory specs, the 15 Round Glock Magazine 9mm will keep the rounds cycling smoothly and reliably through your Glock 19 or 26.