Thermold AR-15/M-16 30 round magazine, .223 Remington and 5.56mm calibers, black.
Unlike metal magazines, Thermold products won't jam because they're made with a nylon that resists heat, dirt and rust. Abuse them, drop them, throw them in the mud. They are dent resistant, self lubricating and non-corrosive.
Restrictions are observed in the following in the following cities and/or states prohibiting the sale or shipment of magazines with more than a 10rd capacity to: Aurora, IL; Chicago, IL; Cook County, IL; Cincinnati, OH; Columbus, OH; Toledo, OH; South Bend, IN; All of CA; All of HI; All of MA; All of MD; All of NJ; All of NY.