ASC AR 15 5.56 40rd mag SS, Black Marlube with Orange Follower. These magazines are an improvement on a classic, with the highest levels of durability. ASC magazines are manufactured 100% start to finish in the USA using .020 gauge 410 Stainless Steel Alloy, heat treated for superior strength and lasting endurance. They are chemically treated for corrosion resistance [ref QQ-P-35] and coated with a proprietary finish, Marlube which is a wear-in not wear-off coating that burnishes into the surface providing its self-lubricating properties.
ASC AR 15 5.56 40rd Mag SS Black