The ProMag TAU09 is a high-quality 8 round magazine designed specifically for the PT-22 pistol and is compatible with .22 long rifle ammunition. Expertly constructed from heat-treated blue steel, it guarantees durability and longevity. The follower, lock-plate, and base-plate are meticulously crafted from a special black polymer based on proprietary DuPont Zytel technology, further enhancing its robustness.