The ProMag COLA35 is an expertly crafted magazine designed to enhance your AR15 experience. With a robust construction from high-quality steel this magazine ensures durability and reliability in various conditions. Offering a generous capacity of 40 rounds it accommodates both .223 and 5.56 caliber ammunition providing ample firepower for extended shooting sessions. Whether you're at the range or in the field this magazine delivers consistent performance making it a valuable addition for any firearm enthusiast.