![RUG MAG AR-556 SR-556 5.56 NATO 5RD RUG MAG AR-556 SR-556 5.56 NATO 5RD](https://cdn11.bigcommerce.com/s-c6aiidxwtg/images/stencil/300x300/products/33737/41552/BHRUG90428__35292.1738866682.jpg?c=1)
This .450 Bushmaster 5-round magazine is made using .020 gauge 410 stainless steel alloy and heat treated for strength and durability. The magazine is then chemically treated for corrosion resistance and coated with a proprietary Marlube� finish that will not wear off and burnishes into the surface to provide self-lubricating properties. It includes chrome silicon springs and an enhanced anti-tilt black polymer follower. The interior dimensions of OAL 2.316 +/- .002 are perfect for new ammunition and reloads.