ProMag COLA35 40rd 223/5.56 Fits AR-15/M16 Black Steel

The Promag AR-15 / M16 .223/5.56 40-Round Steel/Polymer Hybrid Magazine (COL-A35) is a high-capacity magazine designed for AR-15 and M16 platform rifles chambered in .223 Remington and 5.56 NATO. It features a hybrid construction with a heat-treated steel upper body and a DuPont™ Zytel®-based polymer lower body, finished in black oxide for corrosion resistance. This magazine offers extended firepower for range training and recreational shooting, backed by a lifetime warranty against defects and made in the USA.