Product Details

Brand new American-made 5.56 NATO 40-Round magazines. These stainless steel extended AR-15 magazines feature a 40-round capacity and corrosion-resistant, ultra-reliable components like an anti-tilt polymer follower and chrome silicon internal springs. ASC Stainless Steel magazines are an improvement on a classic with the highest levels of durability and increased longevity – simply the best in the industry!

  • Chrome Silicon Springs
  • Stainless Steel Magazine
  • Chemically Treated for Corrosion Resistance
  • Enhanced Anti-tilt Polymer Followers
  • Made In The USA
  • 300 Series SS Floor Plate - Powder Coated Matte Black

ASC magazines are manufactured 100% start to finish in the USA using .020 gauge 410 Stainless Steel Alloy that is heat-treated for superior strength and lasting endurance. They are also chemically treated for corrosion resistance [ref QQ-P-35] and coated with our proprietary “Marlube” finish, which is a wear-in and not a wear-off coating that burnishes into the surface to provide its self-lubricating properties. The interior dimensions of OAL 2.316” ± .002 are perfect for reloads. Check out our 223 / 5.56 ammo to fill these new magazines!

NOT FOR SALE IN: CO HI CT MA MD NJ NY or Chicago.













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More Information

More Information
Category Magazines
Manufacturer SKU ASC-556-SS-40-BLK
UPC ASC-556-SS-40-B
Condition New
Manufacturer ASC
Brand Fit AR 15
Caliber 223/5.56
Capacity 40
Material Stainless Steel
Magazine Capacity 40

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