The ProMag Industries TAU-A14 34-Round Extended Magazine offers superior performance with its robust design, incorporating high carbon steel and advanced polymer technology. Engineered for reliability, this magazine combines traditional manufacturing methods with cutting-edge materials, ensuring durability and a remarkable shooting experience. Proudly made in the USA and guaranteed for life against defects. 34-round Extended Magazine Constructed of a Proprietary DuPont Zytel Based Polymer Injection Molded Magazine Follower Magazine Spring Formed from Heat Treated Chrome Silicon Wire Experience enhanced shooting efficiency and trust in a product that stands the test of time.