The ETSA(R) Gen 2 Nylon AR-15 .223 / 5.56 30-Round Magazine is an affordable aftermarket rifle magazine, designed to withstand harsh tactical and target shooting environments for long-lasting service and unwavering reliability when it matters most. Crafted of an impact- and corrosion-resistant nylon polymer, this magazine comes equipped with a durable steel wire spring and high-visibility polymer follower, designed to ensure proper cartridge alignment for smooth and consistent feeding performance. Improved feed lip geometry ensures compatibility with a variety of AR-15 receivers, while the enlarged over-insertion tab offers improved magazine retention for enhanced reliability while on the move. Lifetime warranty. Made in USA.