American Built Arms Company AI Spec Magazine .308 Black Small

American Built Arms Company AI Spec Magazine .308 Black Small. They are manufactured from high quality polymer and uses a tempered steel spring. We put our magazines through vigorous testing. We have used high quality strength polymer with a high glass content to ensure durability and strength. Although not unbreakable we have driven over these magazines with cars and trucks which did not break them. Specifications for American Built Arms Company AI Spec Magazine: Manufacturer: American Built Ar