The CompMag AR-15 Fixed 10-Round Magazine is built for shooters who need a compliant magazine solution without giving up the standard features of their rifle. Its fixed design stays in place unless the firearm is disassembled, while the side-loading system makes it easier to load rounds directly into the magazine during use. With no permanent modification required, it is a practical option for compliant builds that may later be converted back when allowed. Specifications Platform Compatibility: AR-15 Capacity: 10 rounds Caliber Compatibility: 5.56 NATO / .223 Remington