This is a Stainless Steel 30-round magazine for AR-15 rifles in 5.45x39mm.
ASC’s stainless steel magazines are engineered to the highest standards of quality and reliability—delivering the most dependable 5.45x39mm magazine on the market today. Made 100% start to finish in the U.S.A. from 410 Stainless Steel alloy, heat-treated for superior strength and lasting endurance, these magazines are a must-have for all 5.45mm AR-15 owners.
These standard capacity, 30-round magazines feature ultra-reliable chrome silicon internal springs with special anti-tilt followers for consistent feeding from the first round to the last. Chemically treated to enhance corrosion resistance (ref QQ-P-35) and finished with ASC’s proprietary “wear-in” Marlube for long-lasting, self-lubricating performance.
ASC puts the ultimate care and quality into each and every magazine so that you can get the most out of your 5.45mm AR-15 rifle.