The Heckler & Koch MR556 5.56mm NATO 20-round magazine is a genuine H&K factory magazine engineered for the MR556 platform and other 5.56 NATO rifles. If you run an AR-pattern rifle chambered in 5.56 or .223 Rem, a reliable mag is non-negotiable—this steel-body magazine is built to H&K's exacting standards and designed to feed reliably through thousands of rounds without failure or bolt-lock issues. Whether you're stocking up for the range, competition, or duty use, having quality mags on hand means you spend more time shooting and less time troubleshooting.

H&K magazines are known for tight tolerances and consistent performance. The 20-round capacity strikes a practical balance: it's short enough for prone shooting and barricade work, yet holds enough ammunition for a full training session or hunting scenario without becoming unwieldy. The black finish blends with modern rifle setups and resists corrosion under field use.

Magazine reliability is foundational to any rifle system. Feed failures, bent feed lips, and weak springs undermine even the best firearm. This H&K factory mag eliminates guesswork—it's manufactured to the same specifications as the magazines shipped with MR556 rifles, ensuring fit and function you can trust.

The Heckler & Koch MR556 5.56mm NATO 20-round magazine is a genuine H&K factory magazine engineered for the MR556 platform and other 5.56 NATO rifles. If you run an AR-pattern rifle chambered in 5.56 or .223 Rem, a reliable mag is non-negotiable—this steel-body magazine is built to H&K's exacting standards and designed to feed reliably through thousands of rounds without failure or bolt-lock issues. Whether you're stocking up for the range, competition, or duty use, having quality mags on hand means you spend more time shooting and less time troubleshooting.

H&K magazines are known for tight tolerances and consistent performance. The 20-round capacity strikes a practical balance: it's short enough for prone shooting and barricade work, yet holds enough ammunition for a full training session or hunting scenario without becoming unwieldy. The black finish blends with modern rifle setups and resists corrosion under field use.

Magazine reliability is foundational to any rifle system. Feed failures, bent feed lips, and weak springs undermine even the best firearm. This H&K factory mag eliminates guesswork—it's manufactured to the same specifications as the magazines shipped with MR556 rifles, ensuring fit and function you can trust.