H&K MR556 5.56mm 10rd magazine (steel)

Designed to provide optimum ammunition feeding for any M16/M4/AR15-type weapon the Heckler & Koch 10-Round Steel Magazine can be used in any firearm that uses a NATO-standard 5.56 mm magazine. The 10-Round Steel Magazine features a well-executed design; select materials special anti-friction maritime surface finish advanced spring material attention to production tolerance and steel magazine housing and follower.