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The Colt USGI aluminum magazine is the gold standard of AR platform reliability. This mil-spec 30-round magazine is constructed from anodized aluminum with a wire spring, anti-tilt follower, and dry-film finish — identical to U.S. military issue specs. Post-ban compliant configuration. Chambered for 5.56 NATO / .223 Remington. Compatible with AR-15, M4, and M16-pattern rifles. When the name on the mag matches the name on the lower, you know it’s right.
