Palmetto State Armory offers a wide variety of factory replacement magazines for concealed carry, personal defense, & LE/Military to suit all of your needs! This Bersa OEM factory replacement magazine is engineered speficially for the Bersa Thunder 45 Ultra Compact .45 ACP pistol and has a 7-round capacity. Constructed from steel for durability, Bersa's OEM magazines are manufactured with the same quality materials and attention as the magazines originally supplied upon purchase of your firearm, assuring proper function and quality.