Smith & Wesson Shield 9mm Magazines (fits both Shield 1.0 & 2.0) - crafted from premium American miled stainless and high carbon steel, ensuring top-notch quality and strength. Each tube undergoes through-hardening, providing unparallelled durability. Check-Mate has meticulously polished both the inside and the outside of the tubes to eliminate any drag during use. These magazines boast an anti-friction, self-lubricating polymer for exceptional feed and function. Additionally, the follower is engineered with precise dimple placement, guaranteeing exceptional feeding and function Removable High-Impact Polymer Basepad +10% Power Springs Low Drag Polymer Follower Lifetime Warranty