ProMag COLA9B Standard 20rd 223 Rem/5.56x45mm Fits AR-15/M16 Black DuPont Zytel Polymer, Magazine

Overview

The ProMag COLA9B is a 20-round magazine designed for AR-15/M16 rifles and carbines chambered in .223 Remington or 5.56x45mm NATO. The magazine body, follower, and baseplate are constructed from DuPont Zytel polymer, providing high impact resistance and reduced weight compared to steel alternatives. To ensure reliable feeding pressure over an extended service life, the magazine utilizes a heat-treated chrome silicon wire spring that resists fatigue. This U.S.-made magazine is designed for professional and tactical applications, offering a compact footprint for optimal equipment integration. Each unit comes with a lifetime warranty from the manufacturer.

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