Efficient operation of your AR-15 is important and quickly swapping magazines after going through hundreds of rounds comes second nature. GunSkins AR-15 Mag Skins provide a simple and economical way to protect and identify your magazines to make sure you reload with the correct caliber every time. You can wrap a mag in a matter of minutes and remove it just as fast with no residue left behind. Designed for three 30-round 5.56 x 45 NATO (.223 Remington) magazines. GunSkins are 100% waterproof, non-reflective, and made in the USA.