The Mag5-60 and Mag5-100 are for 5.56x45mm (223 Remington) ammunition. They are compatible with M4/M16/AR-15 variants and other firearms that accept standard STANAG4179 magazines. Constructed from Mil-Spec hard -anodized aluminum, they feed smoothly and reliably due to optimal geometry, non-binding coil springs, and ingenious nesting polymer followers. The long-lasting springs are cadmium coated for low friction and excellent corrosion resistance. Magazines require no lubricants and can be easily disassembled without tools for cleaning,
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