AR-15 Magazine Features This high-quality Ammunition Storage Components AR-15 Stainless Steel Magazine ensures your rifle is properly loaded for range sessions tactical operations and hunting adventures. Ammunition Storage Components constructed these Magazines with a rugged heat-treated 410 series stainless steel body complete with a Marlube coating that enhances their strength and extends their lifetime of use. Each Ammunition Storage Components AR-15 SS Magazine also has chrome silicone springs enhanced anti-tilt polymer followers and a corrosion-resistant stainless steel floor plate that all combine to create one of the toughest magazines on the market. AR-15 Magazine Specifications ASC AR-15 Magazine 30 Rd Blocked To 10 Rd .223/5.56 NATO Stainless Steel