ProMag COL-A33 AR-15 223 Remington, 5.56x45mm NATO 30-Rd Hybrid Steel/Polymer Magazine

The ProMag COL-A33 is a 30-round AR-15 / M16-pattern replacement magazine chambered in 223 Remington, 5.56x45mm NATO. Built around a hybrid steel and polymer design, this magazine is an affordable aftermarket option for range, training, and high-volume shooting use.

The magazine body is constructed of heat-treated steel with a black oxide finish for strength and corrosion resistance, while the injection-molded polymer follower provides smooth, consistent round presentation. This combination of a steel housing with a polymer follower gives shooters the durability of a metal-bodied magazine with the feed geometry of a quality polymer follower.

Engineered as a direct replacement for standard AR-platform magazines, the COL-A33 fits AR-15 / M16-pattern rifles and carbines chambered for 223 Remington and 5.56x45mm NATO. Whether kept as a spare range magazine or used as a cost-effective training magazine, this ProMag hybrid offers an affordable balance of durability and value.