The Black Rain Ordnance BRO-MAG30-DONTTREAD is a robust, dependable 30-round magazine that stands out as a superior alternative to the standard M4/M16 Usgi aluminum magazine. Crafted from advanced polymer material, this efficient 5.5645 NATO (.223 Remington) AR15/M4/M16 magazine exhibits exceptional durability while maintaining a lightweight design.Highlighted FEATURES of this magazine include a sturdy impact-resistant polymer structure featuring a textured grip for enhanced control and handling. It comes fitted with an anti-tilt super follower and a heavy-duty, non-memory, and non-corrosive stainless steel spring, all contributing to its overall functionality and longevity.The Black Rain Ordnance BRO-MAG30-DONTTREAD magazine is proudly made in the U.S.A. and is produced by Amend2 Magazines, a trusted brand known for its commitment to quality.