An affordable alternative to sometimes expensive factory magazines, the ProMag® AR-15 Rollermag™ .223 Rem / 5.56 NATO 10-Round Magazine is a lightweight, California-compliant centerfire rifle magazine, designed to deliver exceptionally smooth and reliable performance in virtually any environment. This ultrareliable standard-capacity magazine features a lightweight DuPont® Zytel™ polymer body for lasting durability. Aggressive texturing on the exterior of the magazine delivers a positive grip for fast reloads and improved field handling. Plus, the heat-treated chrome silicon wire internal spring eliminates binding, while the patented, anti-tilt roller follower ensures smooth, reliable operation. To top it off, this American-made magazine is backed by a "no questions asked" lifetime warranty for exceptional quality and lasting field service you can depend on when it matters most. Order today! Made in USA.