The Amend2 magazine is a sturdy, reliable 5.56x45 NATO (.223 Remington) AR15/M4/M16 magazine made of advance polymer material. It is a light, durable and excellent alternative to the standard M4/M16 USGI aluminum magazine. Polymer: Each magazine is made from a reinforced impact resistant polymer, which provides rigidity and durability. This resin has been fine-tuned to give the ultimate amount of strength while not sacrificing functionality.Feed Lips: Enhanced feed lips offer a unique design that provide a more reliable presentation of each round as it leaves the magazine and enters the chamber. This means quicker cycling and fewer failures to feed.Grip/Texture: Aggressive texture along the front and back of the magazine offer an increased grip, even in wet and muddy conditions.Follower: Each magazine is equipped with a 4-way anti-tilt, self-lubricating follower. The follower sits at a steeper angle than competitors, which aids in feeding angle and reliability. All engagement surfa...